Timeline for Frame failure sudden death?
Current License: CC BY-SA 4.0
14 events
| when toggle format | what | by | license | comment | |
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| Jun 5, 2019 at 9:47 | comment | added | David Richerby | @leftaroundabout More than tens or hundreds of millions of people? I'd like to see any evidence at all for that claim. And downhill mountain-biking is just a blip on the radar; there are half a billion bicycles in China, the majority of which are in urban areas. | |
| Jun 5, 2019 at 9:43 | comment | added | jpa | @Aron This answer contains an analysis of the likely failure modes, which seems quite reasonable to me. But I was objecting to Mast's claim that safe vs. not safe is always a clear-cut yes or no, which it is not. | |
| Jun 5, 2019 at 8:49 | comment | added | leftaroundabout | @DavidRicherby probably even more people, worldwide-speaking, drive wreck bicycles that are about to fall apart through rural areas where there are barely any cars. Others like to push their downhill MTBs through as dangerous terrain as possible. The point is, stop making assumptions about who does what and wants what, just point out what's likely to happen with bike X in situation Y. This answer is exemplary. | |
| Jun 5, 2019 at 8:04 | comment | added | David Richerby | @leftaroundabout I'm sorry but riding a bicycle on the road is not "so daring". It is a completely normal activity performed by tens or hundreds of millions of people every day. | |
| Jun 5, 2019 at 7:42 | comment | added | leftaroundabout | @DavidRicherby well, of course the killing-risk regime shifts depending on whether you usually drive on flat dedicated cycle-tracks, mud trails, stairsets, or you're so daring to go on roads where cars – let alone trucks – can drive. Granted, many road bikers do just that, daily. I could now say that this is every time a time when you might get your skull crushed by a passing truck (whose driver happens to have overlooked you on your pristine high-quality steel bike). But again, this risk is for the individual to judge. | |
| Jun 5, 2019 at 0:52 | comment | added | Aron | @jpa Metal fatigue and failure curves are complicated things. This isn't simple wear. The metal has been worked, and likely work hardened. Massive structural changed have occurred, making the Aluminium that was originally there a completely different material than what it is now. It is likely to be highly brittle rather than plastic. It will fail in completely different failure modes from before. It is not even close to being safe. You might as well ride a glass bike. | |
| Jun 4, 2019 at 22:36 | comment | added | David Richerby | @leftaroundabout Any time your bike breaks under you is a time when you might get your skull crushed by a passing truck. | |
| Jun 4, 2019 at 20:30 | comment | added | leftaroundabout | @DavidRicherby if it's merely likely to break but not likely to cause a bad crash, then it's entirely a matter of taste how long you're willing to ride it. I would ride any bike until it's definitely trash or a significant risk of killing me. | |
| Jun 4, 2019 at 14:30 | comment | added | JPhi1618 | I didn't mean to imply that long term. "Until an alternative is found" was meant to mean you should be actively looking for a replacement because the "repair" shouldn't be trusted for long. | |
| Jun 4, 2019 at 9:40 | comment | added | David Richerby | To me, saying that the bike needs to be replaced "in the long term" suggests some time in the next few years. I'd be OK with an answer that gave a message of "You should replace it as soon as you can but you're probably OK to ride it until your next paycheck or something, if you have to; be aware that this carries risks", but you seem to be suggesting "Yeah, you should plan to replace that eventually" which seems way too slow, to me. | |
| Jun 4, 2019 at 7:03 | comment | added | jpa | @Mast Uh, why do you say so? In real world, it is just a risk of it breaking, and the longer you use the larger the risk becomes. No bike is 100% safe to ride. | |
| Jun 4, 2019 at 6:27 | comment | added | Mast | Something is safe to ride or it's not. | |
| Jun 3, 2019 at 19:05 | review | First posts | |||
| Jun 4, 2019 at 23:20 | |||||
| Jun 3, 2019 at 19:02 | history | answered | JPhi1618 | CC BY-SA 4.0 |