Can I glue this crack as a temporary solution?
I suddenly noticed a crack in my frame.
Is it practical for me to use glue to seal it off as a temporary solution?
Edit: Further information ...two incidents so far. Someone opened their driver side door on me and I slammed into it. That considerably weakened it. Then I fell again while turning a sharp corner, it broke it.
Update from 29th Jan 2019:
- I went to a bike shop and they told me they could not replace it; I need to talk to the shop where I bought it from and get a replacement from them. Does it have to go this way? I would imagine this fork could be easily replaced.
frames
asked yesterday
Yu ZhangYu Zhang
15817
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Yu Zhang is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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|
show 8 more comments
I suddenly noticed a crack in my frame.
Is it practical for me to use glue to seal it off as a temporary solution?
Edit: Further information ...two incidents so far. Someone opened their driver side door on me and I slammed into it. That considerably weakened it. Then I fell again while turning a sharp corner, it broke it.
Update from 29th Jan 2019:
- I went to a bike shop and they told me they could not replace it; I need to talk to the shop where I bought it from and get a replacement from them. Does it have to go this way? I would imagine this fork could be easily replaced.
frames
asked yesterday
Yu ZhangYu Zhang
15817
New contributor
Yu Zhang is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
3
Out of curiosity: what kind of riding are you doing on that bike? You have obviously over-stressed the fork. Or did you crash or get hit by something? What make/model of fork is it?
– Argenti Apparatus
yesterday
2
@Criggie I noticed the kickstand, kinda wondered if the OP had been riding big drops on a hybrid :-)
– Argenti Apparatus
yesterday
1
@ArgentiApparatus, two incidents so far. Someone opened their driver side door on me and I slammed into it. That considerably weakened it. Then I fell again while turning a sharp corner, it broke it.
– Yu Zhang
yesterday
4
@DanielRHicks that is what broken cast metal looks like. For a comprehensive collection of broken things from different materials, checkout pardo.net/bike/pic/fail-001/000.html
– ojs
yesterday
2
If it was damaged in the first accident with the car then it should have been replaced at that point, by the person who was at fault in the accident. You are incredibly lucky that the actual break didn't cause more damage to you and/or others.
– Criggie♦
20 hours ago
|
show 8 more comments
I suddenly noticed a crack in my frame.
Is it practical for me to use glue to seal it off as a temporary solution?
Edit: Further information ...two incidents so far. Someone opened their driver side door on me and I slammed into it. That considerably weakened it. Then I fell again while turning a sharp corner, it broke it.
Update from 29th Jan 2019:
- I went to a bike shop and they told me they could not replace it; I need to talk to the shop where I bought it from and get a replacement from them. Does it have to go this way? I would imagine this fork could be easily replaced.
frames
asked yesterday
Yu ZhangYu Zhang
15817
New contributor
Yu Zhang is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I suddenly noticed a crack in my frame.
Is it practical for me to use glue to seal it off as a temporary solution?
Edit: Further information ...two incidents so far. Someone opened their driver side door on me and I slammed into it. That considerably weakened it. Then I fell again while turning a sharp corner, it broke it.
Update from 29th Jan 2019:
- I went to a bike shop and they told me they could not replace it; I need to talk to the shop where I bought it from and get a replacement from them. Does it have to go this way? I would imagine this fork could be easily replaced.
frames
frames
asked yesterday
Yu ZhangYu Zhang
15817
New contributor
Yu Zhang is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked yesterday
Yu ZhangYu Zhang
15817
New contributor
Yu Zhang is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 4 hours ago
Yu Zhang
asked yesterday
Yu ZhangYu Zhang
15817
New contributor
Yu Zhang is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked yesterday
Yu ZhangYu Zhang
15817
asked yesterday
Yu ZhangYu Zhang
15817
15817
New contributor
Yu Zhang is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Yu Zhang is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Yu Zhang is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
3
Out of curiosity: what kind of riding are you doing on that bike? You have obviously over-stressed the fork. Or did you crash or get hit by something? What make/model of fork is it?
– Argenti Apparatus
yesterday
2
@Criggie I noticed the kickstand, kinda wondered if the OP had been riding big drops on a hybrid :-)
– Argenti Apparatus
yesterday
1
@ArgentiApparatus, two incidents so far. Someone opened their driver side door on me and I slammed into it. That considerably weakened it. Then I fell again while turning a sharp corner, it broke it.
– Yu Zhang
yesterday
4
@DanielRHicks that is what broken cast metal looks like. For a comprehensive collection of broken things from different materials, checkout pardo.net/bike/pic/fail-001/000.html
– ojs
yesterday
2
If it was damaged in the first accident with the car then it should have been replaced at that point, by the person who was at fault in the accident. You are incredibly lucky that the actual break didn't cause more damage to you and/or others.
– Criggie♦
20 hours ago
|
show 8 more comments
3
Out of curiosity: what kind of riding are you doing on that bike? You have obviously over-stressed the fork. Or did you crash or get hit by something? What make/model of fork is it?
– Argenti Apparatus
yesterday
2
@Criggie I noticed the kickstand, kinda wondered if the OP had been riding big drops on a hybrid :-)
– Argenti Apparatus
yesterday
1
@ArgentiApparatus, two incidents so far. Someone opened their driver side door on me and I slammed into it. That considerably weakened it. Then I fell again while turning a sharp corner, it broke it.
– Yu Zhang
yesterday
4
@DanielRHicks that is what broken cast metal looks like. For a comprehensive collection of broken things from different materials, checkout pardo.net/bike/pic/fail-001/000.html
– ojs
yesterday
2
If it was damaged in the first accident with the car then it should have been replaced at that point, by the person who was at fault in the accident. You are incredibly lucky that the actual break didn't cause more damage to you and/or others.
– Criggie♦
20 hours ago
3
3
Out of curiosity: what kind of riding are you doing on that bike? You have obviously over-stressed the fork. Or did you crash or get hit by something? What make/model of fork is it?
– Argenti Apparatus
yesterday
Out of curiosity: what kind of riding are you doing on that bike? You have obviously over-stressed the fork. Or did you crash or get hit by something? What make/model of fork is it?
– Argenti Apparatus
yesterday
2
2
@Criggie I noticed the kickstand, kinda wondered if the OP had been riding big drops on a hybrid :-)
– Argenti Apparatus
yesterday
@Criggie I noticed the kickstand, kinda wondered if the OP had been riding big drops on a hybrid :-)
– Argenti Apparatus
yesterday
1
1
@ArgentiApparatus, two incidents so far. Someone opened their driver side door on me and I slammed into it. That considerably weakened it. Then I fell again while turning a sharp corner, it broke it.
– Yu Zhang
yesterday
@ArgentiApparatus, two incidents so far. Someone opened their driver side door on me and I slammed into it. That considerably weakened it. Then I fell again while turning a sharp corner, it broke it.
– Yu Zhang
yesterday
4
4
@DanielRHicks that is what broken cast metal looks like. For a comprehensive collection of broken things from different materials, checkout pardo.net/bike/pic/fail-001/000.html
– ojs
yesterday
@DanielRHicks that is what broken cast metal looks like. For a comprehensive collection of broken things from different materials, checkout pardo.net/bike/pic/fail-001/000.html
– ojs
yesterday
2
2
If it was damaged in the first accident with the car then it should have been replaced at that point, by the person who was at fault in the accident. You are incredibly lucky that the actual break didn't cause more damage to you and/or others.
– Criggie♦
20 hours ago
If it was damaged in the first accident with the car then it should have been replaced at that point, by the person who was at fault in the accident. You are incredibly lucky that the actual break didn't cause more damage to you and/or others.
– Criggie♦
20 hours ago
|
show 8 more comments
4 Answers
4
active
oldest
votes
No.
The consequences of fork failure are likely to be severe and painful. This may only be a secondary fork crown but it's still structural. The fact that it's such a wide crack means something is already deformed and weakened. Any glue joint would be under huge stress and aluminium doesn't glue well. If this happened out on the trail it might be possible to ride back to civilisation at walking pace on a fire road, but I'd probably rather scoot the bike standing on one pedal. As your picture indicates it's indoors, you need a new fork before riding it anywhere. I wouldn't even ride it to a bike shop.
answered yesterday
Chris HChris H
22.9k138103
8
Fork failures will also be extremely quick, and instinctive braking at that instant will make it worse.
– Criggie♦
yesterday
5
Exactly. Never ride a bike where there's so much as a crack in a) the front axle, b) any part of the fork, including the steering tube, c) the stem, or d) the handlebar. There is zero backup for any of these parts, and failure usually means immediate loss of control and consequently unmitigated crash. Don't play with your health and life like that.
– cmaster
yesterday
Totally agree with the above comments - although once (close to 30 years ago when I was young and stupid) I did the same damage on day 2 of a cross-country MTB race. I was silly enough to complete the event - although in mitigation, most of the down-hill bits were on a soft soil surface so I calculated that if I did crash I wouldn't damage myself too much.
– Penguino
6 hours ago
I often scoot on one pedal, but I doubt that this is a safer option when something's broken, especially in the fork – asymmetric load and you don't have as good feeling in the handlebars, to prevent hits of the front wheel. I'd rather put the saddle very low and coast with both feet ready to touch the ground and center of mass far back on the rear wheel.
– leftaroundabout
5 hours ago
On a motorcycle this could be braced. These forks are not round. and one may want to think about unseen damage and how "true" everything is. The purpose of this member is stop spreading or "bowing" of the forks. As such it may be redundant for a mild ride, OP is obviously getting by. OP is going to need to replace the assembly, but may be able to use another design.
– mckenzm
1 hour ago
add a comment |
NO!!
That's not a "crack" – it's broken in two! You need a new fork. Your current fork has completely failed. Any attempt to repair it will create a massive weak spot which will just break again. Anything going wrong around your front wheel has the possibility of throwing you over the handlebars into the path of a truck.
Furthermore, a significant piece of structural metal on your bike has broken. Unless there was a pre-existing crack, whatever did that must have applied a huge force. Check very carefully that nothing else on your bike is damaged.
answered yesterday
David RicherbyDavid Richerby
10.9k33357
9
'That's not a "crack"' - It's just a flesh wound... youtube.com/watch?v=UijhbHvxWrA
– WernerCD
yesterday
2
The picture's not the best in the world, but it looks like there's a very substantial manufacturing defect: about half the thickness of the metal at the point of failure appears to be slag inclusions or some similar metallurgical defect. The crack itself looks like it's fatigue-related. Between the two, it wouldn't take very much force to break the fork -- all the more reason to replace it, but the rest of the bicycle is probably in fine shape.
– Mark
yesterday
@Mark I'm not convinced. Admittedly it's almost 40 years since I studied metallurgy, but I can't see any obvious defects. (Note: I think we are all agreed on the first para of the answer, and it can't hurt to follow the advice in the third.)
– Martin Bonner
13 hours ago
add a comment |
As others have said the fork is trash and the bike should not be ridden.
Given the nature of the incidents that led to the fork breaking (described in comments), the rest of the bike should be checked for damage, especially the front wheel and headset area of the frame.
Update:
Re: fork replacement: any decent bike store with a competent repair shop should be able to order and install an replacement equivalent fork, even if it is of a different brand. If the fork is branded the same as the rest of the bike, that may be why the bike store told you to go to the store you bought the bike for. Find a different store that is more willing to help.
answered yesterday
Argenti ApparatusArgenti Apparatus
34.3k23685
thanks, much appreciated
– Yu Zhang
2 hours ago
add a comment |
Never do that. Change the fork. Atleast for a welding with bars on both sides to support
answered 16 hours ago
jasminemullaijasminemullai
72
New contributor
jasminemullai is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
You're right, but there's nothing in this one-line answer that isn't already mentioned in the earlier answers. Do please take a moment to browse the tour and see how SE works. This answer will probably get deleted, but don't take that personally.
– Criggie♦
13 hours ago
add a comment |
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4 Answers
4
active
oldest
votes
4 Answers
4
active
oldest
votes
active
oldest
votes
active
oldest
votes
No.
The consequences of fork failure are likely to be severe and painful. This may only be a secondary fork crown but it's still structural. The fact that it's such a wide crack means something is already deformed and weakened. Any glue joint would be under huge stress and aluminium doesn't glue well. If this happened out on the trail it might be possible to ride back to civilisation at walking pace on a fire road, but I'd probably rather scoot the bike standing on one pedal. As your picture indicates it's indoors, you need a new fork before riding it anywhere. I wouldn't even ride it to a bike shop.
answered yesterday
Chris HChris H
22.9k138103
8
Fork failures will also be extremely quick, and instinctive braking at that instant will make it worse.
– Criggie♦
yesterday
5
Exactly. Never ride a bike where there's so much as a crack in a) the front axle, b) any part of the fork, including the steering tube, c) the stem, or d) the handlebar. There is zero backup for any of these parts, and failure usually means immediate loss of control and consequently unmitigated crash. Don't play with your health and life like that.
– cmaster
yesterday
Totally agree with the above comments - although once (close to 30 years ago when I was young and stupid) I did the same damage on day 2 of a cross-country MTB race. I was silly enough to complete the event - although in mitigation, most of the down-hill bits were on a soft soil surface so I calculated that if I did crash I wouldn't damage myself too much.
– Penguino
6 hours ago
I often scoot on one pedal, but I doubt that this is a safer option when something's broken, especially in the fork – asymmetric load and you don't have as good feeling in the handlebars, to prevent hits of the front wheel. I'd rather put the saddle very low and coast with both feet ready to touch the ground and center of mass far back on the rear wheel.
– leftaroundabout
5 hours ago
On a motorcycle this could be braced. These forks are not round. and one may want to think about unseen damage and how "true" everything is. The purpose of this member is stop spreading or "bowing" of the forks. As such it may be redundant for a mild ride, OP is obviously getting by. OP is going to need to replace the assembly, but may be able to use another design.
– mckenzm
1 hour ago
add a comment |
No.
The consequences of fork failure are likely to be severe and painful. This may only be a secondary fork crown but it's still structural. The fact that it's such a wide crack means something is already deformed and weakened. Any glue joint would be under huge stress and aluminium doesn't glue well. If this happened out on the trail it might be possible to ride back to civilisation at walking pace on a fire road, but I'd probably rather scoot the bike standing on one pedal. As your picture indicates it's indoors, you need a new fork before riding it anywhere. I wouldn't even ride it to a bike shop.
answered yesterday
Chris HChris H
22.9k138103
8
Fork failures will also be extremely quick, and instinctive braking at that instant will make it worse.
– Criggie♦
yesterday
5
Exactly. Never ride a bike where there's so much as a crack in a) the front axle, b) any part of the fork, including the steering tube, c) the stem, or d) the handlebar. There is zero backup for any of these parts, and failure usually means immediate loss of control and consequently unmitigated crash. Don't play with your health and life like that.
– cmaster
yesterday
Totally agree with the above comments - although once (close to 30 years ago when I was young and stupid) I did the same damage on day 2 of a cross-country MTB race. I was silly enough to complete the event - although in mitigation, most of the down-hill bits were on a soft soil surface so I calculated that if I did crash I wouldn't damage myself too much.
– Penguino
6 hours ago
I often scoot on one pedal, but I doubt that this is a safer option when something's broken, especially in the fork – asymmetric load and you don't have as good feeling in the handlebars, to prevent hits of the front wheel. I'd rather put the saddle very low and coast with both feet ready to touch the ground and center of mass far back on the rear wheel.
– leftaroundabout
5 hours ago
On a motorcycle this could be braced. These forks are not round. and one may want to think about unseen damage and how "true" everything is. The purpose of this member is stop spreading or "bowing" of the forks. As such it may be redundant for a mild ride, OP is obviously getting by. OP is going to need to replace the assembly, but may be able to use another design.
– mckenzm
1 hour ago
add a comment |
No.
The consequences of fork failure are likely to be severe and painful. This may only be a secondary fork crown but it's still structural. The fact that it's such a wide crack means something is already deformed and weakened. Any glue joint would be under huge stress and aluminium doesn't glue well. If this happened out on the trail it might be possible to ride back to civilisation at walking pace on a fire road, but I'd probably rather scoot the bike standing on one pedal. As your picture indicates it's indoors, you need a new fork before riding it anywhere. I wouldn't even ride it to a bike shop.
answered yesterday
Chris HChris H
22.9k138103
No.
The consequences of fork failure are likely to be severe and painful. This may only be a secondary fork crown but it's still structural. The fact that it's such a wide crack means something is already deformed and weakened. Any glue joint would be under huge stress and aluminium doesn't glue well. If this happened out on the trail it might be possible to ride back to civilisation at walking pace on a fire road, but I'd probably rather scoot the bike standing on one pedal. As your picture indicates it's indoors, you need a new fork before riding it anywhere. I wouldn't even ride it to a bike shop.
answered yesterday
Chris HChris H
22.9k138103
edited yesterday
answered yesterday
Chris HChris H
22.9k138103
answered yesterday
Chris HChris H
22.9k138103
answered yesterday
Chris HChris H
22.9k138103
22.9k138103
8
Fork failures will also be extremely quick, and instinctive braking at that instant will make it worse.
– Criggie♦
yesterday
5
Exactly. Never ride a bike where there's so much as a crack in a) the front axle, b) any part of the fork, including the steering tube, c) the stem, or d) the handlebar. There is zero backup for any of these parts, and failure usually means immediate loss of control and consequently unmitigated crash. Don't play with your health and life like that.
– cmaster
yesterday
Totally agree with the above comments - although once (close to 30 years ago when I was young and stupid) I did the same damage on day 2 of a cross-country MTB race. I was silly enough to complete the event - although in mitigation, most of the down-hill bits were on a soft soil surface so I calculated that if I did crash I wouldn't damage myself too much.
– Penguino
6 hours ago
I often scoot on one pedal, but I doubt that this is a safer option when something's broken, especially in the fork – asymmetric load and you don't have as good feeling in the handlebars, to prevent hits of the front wheel. I'd rather put the saddle very low and coast with both feet ready to touch the ground and center of mass far back on the rear wheel.
– leftaroundabout
5 hours ago
On a motorcycle this could be braced. These forks are not round. and one may want to think about unseen damage and how "true" everything is. The purpose of this member is stop spreading or "bowing" of the forks. As such it may be redundant for a mild ride, OP is obviously getting by. OP is going to need to replace the assembly, but may be able to use another design.
– mckenzm
1 hour ago
add a comment |
8
Fork failures will also be extremely quick, and instinctive braking at that instant will make it worse.
– Criggie♦
yesterday
5
Exactly. Never ride a bike where there's so much as a crack in a) the front axle, b) any part of the fork, including the steering tube, c) the stem, or d) the handlebar. There is zero backup for any of these parts, and failure usually means immediate loss of control and consequently unmitigated crash. Don't play with your health and life like that.
– cmaster
yesterday
Totally agree with the above comments - although once (close to 30 years ago when I was young and stupid) I did the same damage on day 2 of a cross-country MTB race. I was silly enough to complete the event - although in mitigation, most of the down-hill bits were on a soft soil surface so I calculated that if I did crash I wouldn't damage myself too much.
– Penguino
6 hours ago
I often scoot on one pedal, but I doubt that this is a safer option when something's broken, especially in the fork – asymmetric load and you don't have as good feeling in the handlebars, to prevent hits of the front wheel. I'd rather put the saddle very low and coast with both feet ready to touch the ground and center of mass far back on the rear wheel.
– leftaroundabout
5 hours ago
On a motorcycle this could be braced. These forks are not round. and one may want to think about unseen damage and how "true" everything is. The purpose of this member is stop spreading or "bowing" of the forks. As such it may be redundant for a mild ride, OP is obviously getting by. OP is going to need to replace the assembly, but may be able to use another design.
– mckenzm
1 hour ago
8
8
Fork failures will also be extremely quick, and instinctive braking at that instant will make it worse.
– Criggie♦
yesterday
Fork failures will also be extremely quick, and instinctive braking at that instant will make it worse.
– Criggie♦
yesterday
5
5
Exactly. Never ride a bike where there's so much as a crack in a) the front axle, b) any part of the fork, including the steering tube, c) the stem, or d) the handlebar. There is zero backup for any of these parts, and failure usually means immediate loss of control and consequently unmitigated crash. Don't play with your health and life like that.
– cmaster
yesterday
Exactly. Never ride a bike where there's so much as a crack in a) the front axle, b) any part of the fork, including the steering tube, c) the stem, or d) the handlebar. There is zero backup for any of these parts, and failure usually means immediate loss of control and consequently unmitigated crash. Don't play with your health and life like that.
– cmaster
yesterday
Totally agree with the above comments - although once (close to 30 years ago when I was young and stupid) I did the same damage on day 2 of a cross-country MTB race. I was silly enough to complete the event - although in mitigation, most of the down-hill bits were on a soft soil surface so I calculated that if I did crash I wouldn't damage myself too much.
– Penguino
6 hours ago
Totally agree with the above comments - although once (close to 30 years ago when I was young and stupid) I did the same damage on day 2 of a cross-country MTB race. I was silly enough to complete the event - although in mitigation, most of the down-hill bits were on a soft soil surface so I calculated that if I did crash I wouldn't damage myself too much.
– Penguino
6 hours ago
I often scoot on one pedal, but I doubt that this is a safer option when something's broken, especially in the fork – asymmetric load and you don't have as good feeling in the handlebars, to prevent hits of the front wheel. I'd rather put the saddle very low and coast with both feet ready to touch the ground and center of mass far back on the rear wheel.
– leftaroundabout
5 hours ago
I often scoot on one pedal, but I doubt that this is a safer option when something's broken, especially in the fork – asymmetric load and you don't have as good feeling in the handlebars, to prevent hits of the front wheel. I'd rather put the saddle very low and coast with both feet ready to touch the ground and center of mass far back on the rear wheel.
– leftaroundabout
5 hours ago
On a motorcycle this could be braced. These forks are not round. and one may want to think about unseen damage and how "true" everything is. The purpose of this member is stop spreading or "bowing" of the forks. As such it may be redundant for a mild ride, OP is obviously getting by. OP is going to need to replace the assembly, but may be able to use another design.
– mckenzm
1 hour ago
On a motorcycle this could be braced. These forks are not round. and one may want to think about unseen damage and how "true" everything is. The purpose of this member is stop spreading or "bowing" of the forks. As such it may be redundant for a mild ride, OP is obviously getting by. OP is going to need to replace the assembly, but may be able to use another design.
– mckenzm
1 hour ago
add a comment |
NO!!
That's not a "crack" – it's broken in two! You need a new fork. Your current fork has completely failed. Any attempt to repair it will create a massive weak spot which will just break again. Anything going wrong around your front wheel has the possibility of throwing you over the handlebars into the path of a truck.
Furthermore, a significant piece of structural metal on your bike has broken. Unless there was a pre-existing crack, whatever did that must have applied a huge force. Check very carefully that nothing else on your bike is damaged.
answered yesterday
David RicherbyDavid Richerby
10.9k33357
9
'That's not a "crack"' - It's just a flesh wound... youtube.com/watch?v=UijhbHvxWrA
– WernerCD
yesterday
2
The picture's not the best in the world, but it looks like there's a very substantial manufacturing defect: about half the thickness of the metal at the point of failure appears to be slag inclusions or some similar metallurgical defect. The crack itself looks like it's fatigue-related. Between the two, it wouldn't take very much force to break the fork -- all the more reason to replace it, but the rest of the bicycle is probably in fine shape.
– Mark
yesterday
@Mark I'm not convinced. Admittedly it's almost 40 years since I studied metallurgy, but I can't see any obvious defects. (Note: I think we are all agreed on the first para of the answer, and it can't hurt to follow the advice in the third.)
– Martin Bonner
13 hours ago
add a comment |
NO!!
That's not a "crack" – it's broken in two! You need a new fork. Your current fork has completely failed. Any attempt to repair it will create a massive weak spot which will just break again. Anything going wrong around your front wheel has the possibility of throwing you over the handlebars into the path of a truck.
Furthermore, a significant piece of structural metal on your bike has broken. Unless there was a pre-existing crack, whatever did that must have applied a huge force. Check very carefully that nothing else on your bike is damaged.
answered yesterday
David RicherbyDavid Richerby
10.9k33357
9
'That's not a "crack"' - It's just a flesh wound... youtube.com/watch?v=UijhbHvxWrA
– WernerCD
yesterday
2
The picture's not the best in the world, but it looks like there's a very substantial manufacturing defect: about half the thickness of the metal at the point of failure appears to be slag inclusions or some similar metallurgical defect. The crack itself looks like it's fatigue-related. Between the two, it wouldn't take very much force to break the fork -- all the more reason to replace it, but the rest of the bicycle is probably in fine shape.
– Mark
yesterday
@Mark I'm not convinced. Admittedly it's almost 40 years since I studied metallurgy, but I can't see any obvious defects. (Note: I think we are all agreed on the first para of the answer, and it can't hurt to follow the advice in the third.)
– Martin Bonner
13 hours ago
add a comment |
NO!!
That's not a "crack" – it's broken in two! You need a new fork. Your current fork has completely failed. Any attempt to repair it will create a massive weak spot which will just break again. Anything going wrong around your front wheel has the possibility of throwing you over the handlebars into the path of a truck.
Furthermore, a significant piece of structural metal on your bike has broken. Unless there was a pre-existing crack, whatever did that must have applied a huge force. Check very carefully that nothing else on your bike is damaged.
answered yesterday
David RicherbyDavid Richerby
10.9k33357
NO!!
That's not a "crack" – it's broken in two! You need a new fork. Your current fork has completely failed. Any attempt to repair it will create a massive weak spot which will just break again. Anything going wrong around your front wheel has the possibility of throwing you over the handlebars into the path of a truck.
Furthermore, a significant piece of structural metal on your bike has broken. Unless there was a pre-existing crack, whatever did that must have applied a huge force. Check very carefully that nothing else on your bike is damaged.
answered yesterday
David RicherbyDavid Richerby
10.9k33357
edited yesterday
answered yesterday
David RicherbyDavid Richerby
10.9k33357
answered yesterday
David RicherbyDavid Richerby
10.9k33357
answered yesterday
David RicherbyDavid Richerby
10.9k33357
10.9k33357
9
'That's not a "crack"' - It's just a flesh wound... youtube.com/watch?v=UijhbHvxWrA
– WernerCD
yesterday
2
The picture's not the best in the world, but it looks like there's a very substantial manufacturing defect: about half the thickness of the metal at the point of failure appears to be slag inclusions or some similar metallurgical defect. The crack itself looks like it's fatigue-related. Between the two, it wouldn't take very much force to break the fork -- all the more reason to replace it, but the rest of the bicycle is probably in fine shape.
– Mark
yesterday
@Mark I'm not convinced. Admittedly it's almost 40 years since I studied metallurgy, but I can't see any obvious defects. (Note: I think we are all agreed on the first para of the answer, and it can't hurt to follow the advice in the third.)
– Martin Bonner
13 hours ago
add a comment |
9
'That's not a "crack"' - It's just a flesh wound... youtube.com/watch?v=UijhbHvxWrA
– WernerCD
yesterday
2
The picture's not the best in the world, but it looks like there's a very substantial manufacturing defect: about half the thickness of the metal at the point of failure appears to be slag inclusions or some similar metallurgical defect. The crack itself looks like it's fatigue-related. Between the two, it wouldn't take very much force to break the fork -- all the more reason to replace it, but the rest of the bicycle is probably in fine shape.
– Mark
yesterday
@Mark I'm not convinced. Admittedly it's almost 40 years since I studied metallurgy, but I can't see any obvious defects. (Note: I think we are all agreed on the first para of the answer, and it can't hurt to follow the advice in the third.)
– Martin Bonner
13 hours ago
9
9
'That's not a "crack"' - It's just a flesh wound... youtube.com/watch?v=UijhbHvxWrA
– WernerCD
yesterday
'That's not a "crack"' - It's just a flesh wound... youtube.com/watch?v=UijhbHvxWrA
– WernerCD
yesterday
2
2
The picture's not the best in the world, but it looks like there's a very substantial manufacturing defect: about half the thickness of the metal at the point of failure appears to be slag inclusions or some similar metallurgical defect. The crack itself looks like it's fatigue-related. Between the two, it wouldn't take very much force to break the fork -- all the more reason to replace it, but the rest of the bicycle is probably in fine shape.
– Mark
yesterday
The picture's not the best in the world, but it looks like there's a very substantial manufacturing defect: about half the thickness of the metal at the point of failure appears to be slag inclusions or some similar metallurgical defect. The crack itself looks like it's fatigue-related. Between the two, it wouldn't take very much force to break the fork -- all the more reason to replace it, but the rest of the bicycle is probably in fine shape.
– Mark
yesterday
@Mark I'm not convinced. Admittedly it's almost 40 years since I studied metallurgy, but I can't see any obvious defects. (Note: I think we are all agreed on the first para of the answer, and it can't hurt to follow the advice in the third.)
– Martin Bonner
13 hours ago
@Mark I'm not convinced. Admittedly it's almost 40 years since I studied metallurgy, but I can't see any obvious defects. (Note: I think we are all agreed on the first para of the answer, and it can't hurt to follow the advice in the third.)
– Martin Bonner
13 hours ago
add a comment |
As others have said the fork is trash and the bike should not be ridden.
Given the nature of the incidents that led to the fork breaking (described in comments), the rest of the bike should be checked for damage, especially the front wheel and headset area of the frame.
Update:
Re: fork replacement: any decent bike store with a competent repair shop should be able to order and install an replacement equivalent fork, even if it is of a different brand. If the fork is branded the same as the rest of the bike, that may be why the bike store told you to go to the store you bought the bike for. Find a different store that is more willing to help.
answered yesterday
Argenti ApparatusArgenti Apparatus
34.3k23685
thanks, much appreciated
– Yu Zhang
2 hours ago
add a comment |
As others have said the fork is trash and the bike should not be ridden.
Given the nature of the incidents that led to the fork breaking (described in comments), the rest of the bike should be checked for damage, especially the front wheel and headset area of the frame.
Update:
Re: fork replacement: any decent bike store with a competent repair shop should be able to order and install an replacement equivalent fork, even if it is of a different brand. If the fork is branded the same as the rest of the bike, that may be why the bike store told you to go to the store you bought the bike for. Find a different store that is more willing to help.
answered yesterday
Argenti ApparatusArgenti Apparatus
34.3k23685
thanks, much appreciated
– Yu Zhang
2 hours ago
add a comment |
As others have said the fork is trash and the bike should not be ridden.
Given the nature of the incidents that led to the fork breaking (described in comments), the rest of the bike should be checked for damage, especially the front wheel and headset area of the frame.
Update:
Re: fork replacement: any decent bike store with a competent repair shop should be able to order and install an replacement equivalent fork, even if it is of a different brand. If the fork is branded the same as the rest of the bike, that may be why the bike store told you to go to the store you bought the bike for. Find a different store that is more willing to help.
answered yesterday
Argenti ApparatusArgenti Apparatus
34.3k23685
As others have said the fork is trash and the bike should not be ridden.
Given the nature of the incidents that led to the fork breaking (described in comments), the rest of the bike should be checked for damage, especially the front wheel and headset area of the frame.
Update:
Re: fork replacement: any decent bike store with a competent repair shop should be able to order and install an replacement equivalent fork, even if it is of a different brand. If the fork is branded the same as the rest of the bike, that may be why the bike store told you to go to the store you bought the bike for. Find a different store that is more willing to help.
answered yesterday
Argenti ApparatusArgenti Apparatus
34.3k23685
edited 3 hours ago
answered yesterday
Argenti ApparatusArgenti Apparatus
34.3k23685
answered yesterday
Argenti ApparatusArgenti Apparatus
34.3k23685
answered yesterday
Argenti ApparatusArgenti Apparatus
34.3k23685
34.3k23685
thanks, much appreciated
– Yu Zhang
2 hours ago
add a comment |
thanks, much appreciated
– Yu Zhang
2 hours ago
thanks, much appreciated
– Yu Zhang
2 hours ago
thanks, much appreciated
– Yu Zhang
2 hours ago
add a comment |
Never do that. Change the fork. Atleast for a welding with bars on both sides to support
answered 16 hours ago
jasminemullaijasminemullai
72
New contributor
jasminemullai is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
You're right, but there's nothing in this one-line answer that isn't already mentioned in the earlier answers. Do please take a moment to browse the tour and see how SE works. This answer will probably get deleted, but don't take that personally.
– Criggie♦
13 hours ago
add a comment |
Never do that. Change the fork. Atleast for a welding with bars on both sides to support
answered 16 hours ago
jasminemullaijasminemullai
72
New contributor
jasminemullai is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
You're right, but there's nothing in this one-line answer that isn't already mentioned in the earlier answers. Do please take a moment to browse the tour and see how SE works. This answer will probably get deleted, but don't take that personally.
– Criggie♦
13 hours ago
add a comment |
Never do that. Change the fork. Atleast for a welding with bars on both sides to support
answered 16 hours ago
jasminemullaijasminemullai
72
New contributor
jasminemullai is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Never do that. Change the fork. Atleast for a welding with bars on both sides to support
answered 16 hours ago
jasminemullaijasminemullai
72
New contributor
jasminemullai is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered 16 hours ago
jasminemullaijasminemullai
72
New contributor
jasminemullai is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered 16 hours ago
jasminemullaijasminemullai
72
answered 16 hours ago
jasminemullaijasminemullai
72
72
New contributor
jasminemullai is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
jasminemullai is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
jasminemullai is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
You're right, but there's nothing in this one-line answer that isn't already mentioned in the earlier answers. Do please take a moment to browse the tour and see how SE works. This answer will probably get deleted, but don't take that personally.
– Criggie♦
13 hours ago
add a comment |
You're right, but there's nothing in this one-line answer that isn't already mentioned in the earlier answers. Do please take a moment to browse the tour and see how SE works. This answer will probably get deleted, but don't take that personally.
– Criggie♦
13 hours ago
You're right, but there's nothing in this one-line answer that isn't already mentioned in the earlier answers. Do please take a moment to browse the tour and see how SE works. This answer will probably get deleted, but don't take that personally.
– Criggie♦
13 hours ago
You're right, but there's nothing in this one-line answer that isn't already mentioned in the earlier answers. Do please take a moment to browse the tour and see how SE works. This answer will probably get deleted, but don't take that personally.
– Criggie♦
13 hours ago
add a comment |
Yu Zhang is a new contributor. Be nice, and check out our Code of Conduct.
Yu Zhang is a new contributor. Be nice, and check out our Code of Conduct.
Yu Zhang is a new contributor. Be nice, and check out our Code of Conduct.
Yu Zhang is a new contributor. Be nice, and check out our Code of Conduct.
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3
Out of curiosity: what kind of riding are you doing on that bike? You have obviously over-stressed the fork. Or did you crash or get hit by something? What make/model of fork is it?
– Argenti Apparatus
yesterday
2
@Criggie I noticed the kickstand, kinda wondered if the OP had been riding big drops on a hybrid :-)
– Argenti Apparatus
yesterday
1
@ArgentiApparatus, two incidents so far. Someone opened their driver side door on me and I slammed into it. That considerably weakened it. Then I fell again while turning a sharp corner, it broke it.
– Yu Zhang
yesterday
4
@DanielRHicks that is what broken cast metal looks like. For a comprehensive collection of broken things from different materials, checkout pardo.net/bike/pic/fail-001/000.html
– ojs
yesterday
2
If it was damaged in the first accident with the car then it should have been replaced at that point, by the person who was at fault in the accident. You are incredibly lucky that the actual break didn't cause more damage to you and/or others.
– Criggie♦
20 hours ago