this post was submitted on 12 Apr 2026
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bike wrench

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A place to ask bicycle repair questions, and for bike shop monkeys to share advanced non commercial wrenching resources (no YouTube self promotion). This is only for repair related topics.

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I wrecked my RydeANDRA40, probably by using too much pressure on cobblestone and pothole ridden roads.

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[–] 5ibelius9insterberg@feddit.org 1 points 3 months ago (1 children)

Thank you for the extensive explanation! The only thing I know about aluminum is that unlike steel it doesn’t bend, it just breaks. I learned this the hard way.

Twice…

[–] litchralee@sh.itjust.works 0 points 3 months ago (1 children)

I wonder if your scenario would be aided by not having any spoke access holes at all. That way, the inside of the rim would have no gaps at all, except for the air valve. I understand this is common for carbon fiber rims.

Though that only helps if the issue was a fatigue fracture (eg induced due to loose spokes that turned the rim into an oval with every rotation). If the problem was due to outright overloading (rare on a non-cargo bicycle), then closing those holes doesn't help much.

And if the issue was a galvanic interaction between the aluminum rim and some other metal, then this also doesn't help at all. And indeed, neither would a steel wheel. In this situation, probably only carbon fiber would be a true fix. But that must mean you ride in some horrific conditions for a bicycle, mechanically-speaking.

[–] 5ibelius9insterberg@feddit.org 2 points 3 months ago

It’s a cargobike and I‘m 15 kilos below maximum driver’s weight and even further away from the maximum weight, but there’s nonetheless a high probability for a fatigue fracture. I forgot to open my lock before pushing my bike more than once, so there could have been loose spokes.

The guy from my local cargobike shop^tm^ said the wheel he ordered for me is a bit more robust and I will take better care of my spokes. So I hope, this won’t happen again…