Originally Posted by
choddo
Yeah spindles are almost all 24mm (Shimano use this and GXP was mostly this with a 22mm end piece for the NDS bearing just to piss everyone off)
or 30mm (bb30 and PF30)
then SRAM introduced 29mm with DUB which also has longer spindles but that Ridley predates that so can ignore that possibility.
This chart is very useful.
https://wheelsmfg.com/crankset-tech
I don’t see that Jen would want to keep that straight leg so I reckon a 160 at most. That’s losing power and maybe an injury waiting to happen. Your foot position on the pedal looks a bit forward of the ball of your foot too but I’m sure it’s different in cleats.
Nice link, thanks!
I'm happy with my 24mm system with threaded external bearings into 68mm BB shell (replaced ancient-design separate square-taper axle, caged bearings, and cups, I stayed with that a long time, because it was *adjustable* to take up slack from wear, and rebuildable, cartridge BBs can't do that. NOTE: New caged bearings at LBS: $1 each); No need for any sort of press or tool to press bearings in and out. 24mm seems plenty stiff axle for me. I suppose if I bought a new road bike without a threaded BB, I'd need to use one of the newer standards, but that will never happen. I have one road bike, bought new in '89, and don't expect to ever buy another, I'm in townie and tour mode now. Durability, ease of service, low cost are what matters.