mixes with . We'll see how these derailleur pulleys work on my computer bike with old Shimano 8-speed RSX. Going from bushings to bearings should be a nice change too. If these hold up, it'll be nice to do this for our MTBs that routinely eat pulleys up. @3dprinting

Well, they're in place and initial impressions are favorable. They're quiet and with bearings spin nicely. Did some brutal shifting on a quick shakedown and all the teeth are still there.

@idropyou Whoa! What filament did you use - ABS, Nylon?

@Miq This first attempt is just PLA.

@idropyou "whoa!" squared... I never would have thought PLA could stand the forces. My bet would have been the gears would break within minutes. Impressive.

@Miq I'll print another set to keep as spares should they give up on a ride. We'll see how they do. Always fun to try stuff out and see what happens.

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