Re: More equipment failure (Shimano 110mm front axle)

  • Thread starter Phil, Squid-in-Training
  • Start date



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Phil, Squid-in-Training

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> just a cheapo axle that's fatigued pretty much where you would expect.
> that looks like one of the axles that's threaded its whole length -
> the cheap version. the better quality ones only have threads rolled
> at the ends.


Yes. This was a full-length roll. I replaced it with a Wheels
Manufacturing AXLE-17 cromo axle. I'm not sure if the threads are only
rolled at the ends, but I think they are.

> not much you can do except replace. even replacing with a better axle
> is doubtful economics as the bearings on that model are not great.


I've actually found that the Deore, with the rubber seals around the cones
that add a certain amount of rolling drag, seals wonderfully and rolls like
cartridge bearings if adjusted when new. Even after a few hundred miles of
MTB, a few rides of which were wet, the typically neon green Shimano grease
was still bright and pristine!

> the modern hubs use an oversize axle which theoretically might offer
> an improvement in fatigue life, but time is the judge of that in
> practice.


Like the Specialized Stout hubs and the Ritchey "Skraxle?" Also, only
Shimano's high-end wheels offer an oversize option.

> it's also worth mentioning that this is the /primary/ reason you get
> bolt-through axles on free-ride bikes - impact fatigue resistance, not
> braking pullout resistance [although pullout is a side benefit].


Good point. Most of those riders have no idea what fatigue is, whereas
disc-brake yank is very easily pictured.

--
Phil, Squid-in-Training
 

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