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these pulleys give you even more options to customize your ride and maximize everyday or race-day performance
please have a look at BB86-30
It fits 11 and 12 speed Ultegra and Dura Ace derailleurs
This bottom bracket will fit any Shimano crankset on a T47 frame with 86
Aero Oversized Derailleur Cage - SRAM AXS derailleurtype-Campagnolo these pulleys give you evenBig pulley wheels were not the final step to free speed. Kolossos now comes in Aero, shielding your wheels and chain from the wind for those riders looking for maximum output. Aero Kolossos is built with Kogel ceramic bearings and road seals. Fully built in CNC machined aluminum with an internal spine for maximum stiffness, Aero Kolossos will help you cut through the wind as well as help you maintain shifting accuracy. When it comes to marginal gains,
