Kolossos Oversized Derailleur Pulleys 2nd Gen Looking for another opportunity to

Looking for another opportunity to increase the durability of your drivetrain and customize the look of your Shimano crankset

Looking for the easiest way to up the performance of your bike

and chain retention

Rotor 30mm

This bottom bracket fits the M30 spindle of Praxis and Infocrank on a BB30 frame

Kolossos Oversized Derailleur Pulleys 2nd Gen Looking for another opportunity toDesigned exclusively for the Kolossos Oversized Derailleur Cage, these pulleys give you even more options to customize your ride and maximize everyday or race day performance. Kolossos oversized pulley wheels are built to last: aluminum cogs, serviceable bearings to resist the most challenging cycling conditions. **Please Note compatible ONLY with Kolossos Oversized Derailleur Cages and available with road seals.