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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Can i replace the 19mm nuts on my ebike's rear axle with 18mm nuts? (self.bikewrench)

submitted 7 months ago by vomitaur to c/bikewrench@lemmy.world

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Context: my ebike has 19mm nuts on the rear axle (and 15mm on the front). I have an old Proto wrench that's a 15mm/18mm, so i'm wondering if i could replace the rear nuts with 18mm nuts instead, so i can carry around one less wrench.

The bike is an Eahora Cupid with a 1000w motor if that makes any difference.

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[–] avidamoeba@lemmy.ca 2 points 7 months ago* (last edited 7 months ago)

In order to avoid having to remove the rear wheel often, I'd buy a rear tire with really good puncture protection. I had an episode when I had to remove my rear hub several times in a month because I used Panaracer GravelKing which turned out to have really weak protection. I switched to a version with protection and I haven't had to remove my hub due to punctures. Having to torque the nuts to 50Nm isn't fun.

Not familiar with the bike but what could it be - square taper, ISIS? Not sure if ISIS is that old. If it's square taper, there's plenty of options. The lower end Shimano cranks (Alivio, Acera) used to use square taper. They probably still do.

Looked at a pic of Biopace, looks like square taper.