Kolossos Oversized Derailleur Pulleys 2nd Gen This bottom bracket fits the

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

Customize the look of your bikes the way you want

muddy conditions

Here's Some Technical Details:

and chain retention

Kolossos Oversized Derailleur Pulleys 2nd Gen This bottom bracket fits theDesigned 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.