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Question:

My rear axle is bent. What would cause this?

I converted an 80‘s road frame with horizontal dropouts into a fixed gear. The rear axle is now bent after 4 days of heavy riding. What can be causing this? Chain line is pretty straight and I run a 40x16 gearing. I have very powerful legs and I believe this along with the axle getting loose is the reason. Would chain tugs work? The axle is bent on the side of the fixed cog. Can weight be the issue. I would like to resolve this and I‘m thinking flipping the hub to freewheel and changing to 3/32 chain will do the trick. Any insight is highly appreciated and I eagerly wait any answers. Thank you.

Answer:

Bent axle is almost certainly due to impact. That's about the only thing that can generate enough force. Jumping curbs? Tricks?
You say off in title but on in question, I think you mean on. Yes, typically check engine is for oil change, your car either has it timed for every 3000 miles (meaning it came on at 9000) or every 5000 (which isn't your case unless that light has been on since 5000. Look in your owners manual, it will tell you exactly what is going on.
If the check engine light is on, do not buy the truck. You have no idea what problems you are getting into and will have to pay for the diagnoses and repairs before you can get the truck inspected cuz it wont pass. Seems to shady.
If you are kidding with us, this is ticklish I believe it is the axle not parallel to the bottom bracket. The misalignment due to axle working loose from repeatedly undulating routes, harsh cycling, overloading, heavy braking, off-road usage and the like (unless its an imitation road bike) You need a Bike Shop Mechanic to help solve the problem
With a number of the older dropouts, there turned right into a marginal quantity of area left between the axle and the dropout, which, throughout driving, allowed the axle to really bend from side to side. That does make stronger the wheel in the dropouts, yet after a lengthy time period, the positioned on on the axle can create grooves and deep marks into the axle. also, the consistent bending can carry about a fatigue failure, which will outcome in a crack/wreck So, that a threat, or, someone up correct isn't very keen on your bicycle, as i have not seen or heard of a damaged axle in somewhat a lengthy time period. yet, as for a clean axle, there is truly no longer something you may want to do yet wish for the in basic terms right. And the dropouts will be in basic terms positive in case you bend em out.

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