Looks nice eh?
It's a replacement for those for those flimsy plastic bottom preload collars. Precision machined aluminium preload ring, aluminium inner ring thread and a titanium 2.5mm hex fastening bolt. This was designed for the very luscious eeWings but you are in luck if you have a DUB crankset (28.99mm spindple) or a 30mm crank (SRAM, Raceface,)
Fully metal construction gives a nice positive feel when getting those bearings just right.
- Fits 30mm spindle cranks - eeWings, RaceFace, SRAM
- Fits DUB 28.99mm spindle