Is this mechanically safe?How bad is this damaged lugIs it safe to ride a steel bike with a dented/buckled frame?Is it safe to ride on cracked tyre?What caused this seat clamp / frame failure?Is this a cracked frame?Cracks on tire - still safe to ride?The Effects of Widening Seat/ChainstaysIs it safe to ride this frame?Is this cracked?IS THIS BIKE SAFE
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Is this mechanically safe?
How bad is this damaged lugIs it safe to ride a steel bike with a dented/buckled frame?Is it safe to ride on cracked tyre?What caused this seat clamp / frame failure?Is this a cracked frame?Cracks on tire - still safe to ride?The Effects of Widening Seat/ChainstaysIs it safe to ride this frame?Is this cracked?IS THIS BIKE SAFE
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Recently picked up a steel frame and realised there was a crack on one side of the rear triangle, right by the seatpost. Crack seem to be contained towards the outer part of the tube so does not seem to affect wielded joint. Since it's a steel frame, I feel like it's good to go but a buddy thinks otherwise. Anyone experience something similar? Is it safe or am I doomed for a tragic death ☠? Any help appreciated!
frames steel crack
asked Aug 2 at 13:53
D LuckyD Lucky
232 bronze badges
add a comment |
Recently picked up a steel frame and realised there was a crack on one side of the rear triangle, right by the seatpost. Crack seem to be contained towards the outer part of the tube so does not seem to affect wielded joint. Since it's a steel frame, I feel like it's good to go but a buddy thinks otherwise. Anyone experience something similar? Is it safe or am I doomed for a tragic death ☠? Any help appreciated!
frames steel crack
asked Aug 2 at 13:53
D LuckyD Lucky
232 bronze badges
1
I would say not a problem. That seam likely wasn't welded in the first place, just painted over.
– Daniel R Hicks
Aug 2 at 13:55
@DanielRHicks that's a brazed frame
– Argenti Apparatus
Aug 2 at 14:39
@ArgentiApparatus - True. It's a lugged frame that would have been brazed. But that seam in the stay likely was never brazed, just painted.
– Daniel R Hicks
Aug 2 at 23:44
I concur with the answers but from bitter experience can attest to the fact that this will only get worse, it's very likely more corrosion that will slowly eat away at the area than a 'crack' per se. You've got time, but if you'd like to retain your paint job, it's best to get this attended to sooner rather than later. I'm staring at a frame in the corner of the room now unridable with a corroded/'cracked' bottom head lug, rode it for about 1.5 years after I first noticed pretty much what you're seeing on yours.
– Lamar Latrell
Aug 3 at 1:24
add a comment |
Recently picked up a steel frame and realised there was a crack on one side of the rear triangle, right by the seatpost. Crack seem to be contained towards the outer part of the tube so does not seem to affect wielded joint. Since it's a steel frame, I feel like it's good to go but a buddy thinks otherwise. Anyone experience something similar? Is it safe or am I doomed for a tragic death ☠? Any help appreciated!
frames steel crack
asked Aug 2 at 13:53
D LuckyD Lucky
232 bronze badges
Recently picked up a steel frame and realised there was a crack on one side of the rear triangle, right by the seatpost. Crack seem to be contained towards the outer part of the tube so does not seem to affect wielded joint. Since it's a steel frame, I feel like it's good to go but a buddy thinks otherwise. Anyone experience something similar? Is it safe or am I doomed for a tragic death ☠? Any help appreciated!
frames steel crack
frames steel crack
asked Aug 2 at 13:53
D LuckyD Lucky
232 bronze badges
asked Aug 2 at 13:53
D LuckyD Lucky
232 bronze badges
asked Aug 2 at 13:53
D LuckyD Lucky
232 bronze badges
asked Aug 2 at 13:53
D LuckyD Lucky
232 bronze badges
asked Aug 2 at 13:53
D LuckyD Lucky
232 bronze badges
232 bronze badges
1
I would say not a problem. That seam likely wasn't welded in the first place, just painted over.
– Daniel R Hicks
Aug 2 at 13:55
@DanielRHicks that's a brazed frame
– Argenti Apparatus
Aug 2 at 14:39
@ArgentiApparatus - True. It's a lugged frame that would have been brazed. But that seam in the stay likely was never brazed, just painted.
– Daniel R Hicks
Aug 2 at 23:44
I concur with the answers but from bitter experience can attest to the fact that this will only get worse, it's very likely more corrosion that will slowly eat away at the area than a 'crack' per se. You've got time, but if you'd like to retain your paint job, it's best to get this attended to sooner rather than later. I'm staring at a frame in the corner of the room now unridable with a corroded/'cracked' bottom head lug, rode it for about 1.5 years after I first noticed pretty much what you're seeing on yours.
– Lamar Latrell
Aug 3 at 1:24
add a comment |
1
I would say not a problem. That seam likely wasn't welded in the first place, just painted over.
– Daniel R Hicks
Aug 2 at 13:55
@DanielRHicks that's a brazed frame
– Argenti Apparatus
Aug 2 at 14:39
@ArgentiApparatus - True. It's a lugged frame that would have been brazed. But that seam in the stay likely was never brazed, just painted.
– Daniel R Hicks
Aug 2 at 23:44
I concur with the answers but from bitter experience can attest to the fact that this will only get worse, it's very likely more corrosion that will slowly eat away at the area than a 'crack' per se. You've got time, but if you'd like to retain your paint job, it's best to get this attended to sooner rather than later. I'm staring at a frame in the corner of the room now unridable with a corroded/'cracked' bottom head lug, rode it for about 1.5 years after I first noticed pretty much what you're seeing on yours.
– Lamar Latrell
Aug 3 at 1:24
1
1
I would say not a problem. That seam likely wasn't welded in the first place, just painted over.
– Daniel R Hicks
Aug 2 at 13:55
I would say not a problem. That seam likely wasn't welded in the first place, just painted over.
– Daniel R Hicks
Aug 2 at 13:55
@DanielRHicks that's a brazed frame
– Argenti Apparatus
Aug 2 at 14:39
@DanielRHicks that's a brazed frame
– Argenti Apparatus
Aug 2 at 14:39
@ArgentiApparatus - True. It's a lugged frame that would have been brazed. But that seam in the stay likely was never brazed, just painted.
– Daniel R Hicks
Aug 2 at 23:44
@ArgentiApparatus - True. It's a lugged frame that would have been brazed. But that seam in the stay likely was never brazed, just painted.
– Daniel R Hicks
Aug 2 at 23:44
I concur with the answers but from bitter experience can attest to the fact that this will only get worse, it's very likely more corrosion that will slowly eat away at the area than a 'crack' per se. You've got time, but if you'd like to retain your paint job, it's best to get this attended to sooner rather than later. I'm staring at a frame in the corner of the room now unridable with a corroded/'cracked' bottom head lug, rode it for about 1.5 years after I first noticed pretty much what you're seeing on yours.
– Lamar Latrell
Aug 3 at 1:24
I concur with the answers but from bitter experience can attest to the fact that this will only get worse, it's very likely more corrosion that will slowly eat away at the area than a 'crack' per se. You've got time, but if you'd like to retain your paint job, it's best to get this attended to sooner rather than later. I'm staring at a frame in the corner of the room now unridable with a corroded/'cracked' bottom head lug, rode it for about 1.5 years after I first noticed pretty much what you're seeing on yours.
– Lamar Latrell
Aug 3 at 1:24
add a comment |
2 Answers
2
active
oldest
votes
I think the key question is: how much strength is the elliptical plate brazed over the top of the seat stay adding to the strength of the joint? I'd guess it is adding some strength, as without it there is not much material between the main seat stay tube and the brazed joint. I'd be worried about a crack forming just below the joint which could lead to the stay detaching from the main triangle
However, if one stay detaches it likely won't be a catastrophic failure, because the other stay will still be supporting the rear triangle.
Really you need to consider the risk yourself. If you are a heavy rider who rides the bike hard there's more risk, obviously. At the very least I'd periodically inspect that area to check for any other cracks forming.
answered Aug 2 at 14:55
Argenti ApparatusArgenti Apparatus
44.8k3 gold badges45 silver badges107 bronze badges
2
I’d also recommend drilling a tiny hole at the end of the crack to stop propagation.
– Andrew
Aug 2 at 17:17
Agreed, at 70kg I'm by no means heavy so I don't see this being too big of a problem. That said, this would be interesting to see through so I'll be keeping an eye on it for a while and if anything changes I'll report in for science. Thanks guys!
– D Lucky
Aug 2 at 18:17
1
A good framebuilder could easily repair that, possibly without much damage to the paintjob.
– Carel
Aug 2 at 18:35
It's not an "elliptical plate", it's part of the stay, sliced, then smashed down.
– Daniel R Hicks
Aug 2 at 23:45
add a comment |
My guess is that when the frame was made the solder didn't flow into that gap completely and it's been this way since it was new covered over by paint.
If it gets worse over time it can be repaired.
If you don't feel comfortable with it you can get it repaired now.
Argenti is right, a worst case scenario is the seat stay detaching when you need it most.
Even if that happens you have other tubes to hold things together so the rear wheel won't fly off - you'll have time to slow down and get off the bike, so you might have to walk a long ways.
answered Aug 2 at 17:19
David DDavid D
3,4971 gold badge5 silver badges19 bronze badges
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
I think the key question is: how much strength is the elliptical plate brazed over the top of the seat stay adding to the strength of the joint? I'd guess it is adding some strength, as without it there is not much material between the main seat stay tube and the brazed joint. I'd be worried about a crack forming just below the joint which could lead to the stay detaching from the main triangle
However, if one stay detaches it likely won't be a catastrophic failure, because the other stay will still be supporting the rear triangle.
Really you need to consider the risk yourself. If you are a heavy rider who rides the bike hard there's more risk, obviously. At the very least I'd periodically inspect that area to check for any other cracks forming.
answered Aug 2 at 14:55
Argenti ApparatusArgenti Apparatus
44.8k3 gold badges45 silver badges107 bronze badges
2
I’d also recommend drilling a tiny hole at the end of the crack to stop propagation.
– Andrew
Aug 2 at 17:17
Agreed, at 70kg I'm by no means heavy so I don't see this being too big of a problem. That said, this would be interesting to see through so I'll be keeping an eye on it for a while and if anything changes I'll report in for science. Thanks guys!
– D Lucky
Aug 2 at 18:17
1
A good framebuilder could easily repair that, possibly without much damage to the paintjob.
– Carel
Aug 2 at 18:35
It's not an "elliptical plate", it's part of the stay, sliced, then smashed down.
– Daniel R Hicks
Aug 2 at 23:45
add a comment |
I think the key question is: how much strength is the elliptical plate brazed over the top of the seat stay adding to the strength of the joint? I'd guess it is adding some strength, as without it there is not much material between the main seat stay tube and the brazed joint. I'd be worried about a crack forming just below the joint which could lead to the stay detaching from the main triangle
However, if one stay detaches it likely won't be a catastrophic failure, because the other stay will still be supporting the rear triangle.
Really you need to consider the risk yourself. If you are a heavy rider who rides the bike hard there's more risk, obviously. At the very least I'd periodically inspect that area to check for any other cracks forming.
answered Aug 2 at 14:55
Argenti ApparatusArgenti Apparatus
44.8k3 gold badges45 silver badges107 bronze badges
2
I’d also recommend drilling a tiny hole at the end of the crack to stop propagation.
– Andrew
Aug 2 at 17:17
Agreed, at 70kg I'm by no means heavy so I don't see this being too big of a problem. That said, this would be interesting to see through so I'll be keeping an eye on it for a while and if anything changes I'll report in for science. Thanks guys!
– D Lucky
Aug 2 at 18:17
1
A good framebuilder could easily repair that, possibly without much damage to the paintjob.
– Carel
Aug 2 at 18:35
It's not an "elliptical plate", it's part of the stay, sliced, then smashed down.
– Daniel R Hicks
Aug 2 at 23:45
add a comment |
I think the key question is: how much strength is the elliptical plate brazed over the top of the seat stay adding to the strength of the joint? I'd guess it is adding some strength, as without it there is not much material between the main seat stay tube and the brazed joint. I'd be worried about a crack forming just below the joint which could lead to the stay detaching from the main triangle
However, if one stay detaches it likely won't be a catastrophic failure, because the other stay will still be supporting the rear triangle.
Really you need to consider the risk yourself. If you are a heavy rider who rides the bike hard there's more risk, obviously. At the very least I'd periodically inspect that area to check for any other cracks forming.
answered Aug 2 at 14:55
Argenti ApparatusArgenti Apparatus
44.8k3 gold badges45 silver badges107 bronze badges
I think the key question is: how much strength is the elliptical plate brazed over the top of the seat stay adding to the strength of the joint? I'd guess it is adding some strength, as without it there is not much material between the main seat stay tube and the brazed joint. I'd be worried about a crack forming just below the joint which could lead to the stay detaching from the main triangle
However, if one stay detaches it likely won't be a catastrophic failure, because the other stay will still be supporting the rear triangle.
Really you need to consider the risk yourself. If you are a heavy rider who rides the bike hard there's more risk, obviously. At the very least I'd periodically inspect that area to check for any other cracks forming.
answered Aug 2 at 14:55
Argenti ApparatusArgenti Apparatus
44.8k3 gold badges45 silver badges107 bronze badges
answered Aug 2 at 14:55
Argenti ApparatusArgenti Apparatus
44.8k3 gold badges45 silver badges107 bronze badges
answered Aug 2 at 14:55
Argenti ApparatusArgenti Apparatus
44.8k3 gold badges45 silver badges107 bronze badges
answered Aug 2 at 14:55
Argenti ApparatusArgenti Apparatus
44.8k3 gold badges45 silver badges107 bronze badges
44.8k3 gold badges45 silver badges107 bronze badges
2
I’d also recommend drilling a tiny hole at the end of the crack to stop propagation.
– Andrew
Aug 2 at 17:17
Agreed, at 70kg I'm by no means heavy so I don't see this being too big of a problem. That said, this would be interesting to see through so I'll be keeping an eye on it for a while and if anything changes I'll report in for science. Thanks guys!
– D Lucky
Aug 2 at 18:17
1
A good framebuilder could easily repair that, possibly without much damage to the paintjob.
– Carel
Aug 2 at 18:35
It's not an "elliptical plate", it's part of the stay, sliced, then smashed down.
– Daniel R Hicks
Aug 2 at 23:45
add a comment |
2
I’d also recommend drilling a tiny hole at the end of the crack to stop propagation.
– Andrew
Aug 2 at 17:17
Agreed, at 70kg I'm by no means heavy so I don't see this being too big of a problem. That said, this would be interesting to see through so I'll be keeping an eye on it for a while and if anything changes I'll report in for science. Thanks guys!
– D Lucky
Aug 2 at 18:17
1
A good framebuilder could easily repair that, possibly without much damage to the paintjob.
– Carel
Aug 2 at 18:35
It's not an "elliptical plate", it's part of the stay, sliced, then smashed down.
– Daniel R Hicks
Aug 2 at 23:45
2
2
I’d also recommend drilling a tiny hole at the end of the crack to stop propagation.
– Andrew
Aug 2 at 17:17
I’d also recommend drilling a tiny hole at the end of the crack to stop propagation.
– Andrew
Aug 2 at 17:17
Agreed, at 70kg I'm by no means heavy so I don't see this being too big of a problem. That said, this would be interesting to see through so I'll be keeping an eye on it for a while and if anything changes I'll report in for science. Thanks guys!
– D Lucky
Aug 2 at 18:17
Agreed, at 70kg I'm by no means heavy so I don't see this being too big of a problem. That said, this would be interesting to see through so I'll be keeping an eye on it for a while and if anything changes I'll report in for science. Thanks guys!
– D Lucky
Aug 2 at 18:17
1
1
A good framebuilder could easily repair that, possibly without much damage to the paintjob.
– Carel
Aug 2 at 18:35
A good framebuilder could easily repair that, possibly without much damage to the paintjob.
– Carel
Aug 2 at 18:35
It's not an "elliptical plate", it's part of the stay, sliced, then smashed down.
– Daniel R Hicks
Aug 2 at 23:45
It's not an "elliptical plate", it's part of the stay, sliced, then smashed down.
– Daniel R Hicks
Aug 2 at 23:45
add a comment |
My guess is that when the frame was made the solder didn't flow into that gap completely and it's been this way since it was new covered over by paint.
If it gets worse over time it can be repaired.
If you don't feel comfortable with it you can get it repaired now.
Argenti is right, a worst case scenario is the seat stay detaching when you need it most.
Even if that happens you have other tubes to hold things together so the rear wheel won't fly off - you'll have time to slow down and get off the bike, so you might have to walk a long ways.
answered Aug 2 at 17:19
David DDavid D
3,4971 gold badge5 silver badges19 bronze badges
add a comment |
My guess is that when the frame was made the solder didn't flow into that gap completely and it's been this way since it was new covered over by paint.
If it gets worse over time it can be repaired.
If you don't feel comfortable with it you can get it repaired now.
Argenti is right, a worst case scenario is the seat stay detaching when you need it most.
Even if that happens you have other tubes to hold things together so the rear wheel won't fly off - you'll have time to slow down and get off the bike, so you might have to walk a long ways.
answered Aug 2 at 17:19
David DDavid D
3,4971 gold badge5 silver badges19 bronze badges
add a comment |
My guess is that when the frame was made the solder didn't flow into that gap completely and it's been this way since it was new covered over by paint.
If it gets worse over time it can be repaired.
If you don't feel comfortable with it you can get it repaired now.
Argenti is right, a worst case scenario is the seat stay detaching when you need it most.
Even if that happens you have other tubes to hold things together so the rear wheel won't fly off - you'll have time to slow down and get off the bike, so you might have to walk a long ways.
answered Aug 2 at 17:19
David DDavid D
3,4971 gold badge5 silver badges19 bronze badges
My guess is that when the frame was made the solder didn't flow into that gap completely and it's been this way since it was new covered over by paint.
If it gets worse over time it can be repaired.
If you don't feel comfortable with it you can get it repaired now.
Argenti is right, a worst case scenario is the seat stay detaching when you need it most.
Even if that happens you have other tubes to hold things together so the rear wheel won't fly off - you'll have time to slow down and get off the bike, so you might have to walk a long ways.
answered Aug 2 at 17:19
David DDavid D
3,4971 gold badge5 silver badges19 bronze badges
answered Aug 2 at 17:19
David DDavid D
3,4971 gold badge5 silver badges19 bronze badges
answered Aug 2 at 17:19
David DDavid D
3,4971 gold badge5 silver badges19 bronze badges
answered Aug 2 at 17:19
David DDavid D
3,4971 gold badge5 silver badges19 bronze badges
3,4971 gold badge5 silver badges19 bronze badges
add a comment |
add a comment |
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I would say not a problem. That seam likely wasn't welded in the first place, just painted over.
– Daniel R Hicks
Aug 2 at 13:55
@DanielRHicks that's a brazed frame
– Argenti Apparatus
Aug 2 at 14:39
@ArgentiApparatus - True. It's a lugged frame that would have been brazed. But that seam in the stay likely was never brazed, just painted.
– Daniel R Hicks
Aug 2 at 23:44
I concur with the answers but from bitter experience can attest to the fact that this will only get worse, it's very likely more corrosion that will slowly eat away at the area than a 'crack' per se. You've got time, but if you'd like to retain your paint job, it's best to get this attended to sooner rather than later. I'm staring at a frame in the corner of the room now unridable with a corroded/'cracked' bottom head lug, rode it for about 1.5 years after I first noticed pretty much what you're seeing on yours.
– Lamar Latrell
Aug 3 at 1:24