Kolossos ST Oversized Derailleur Cage - GRX CERAMIC OVERSIZED DERAILLEUR PULLEYS Built for optimal shifting accuracy

Built for optimal shifting accuracy and chain retention—essential for XC

Pick your pulley type from the drop down menu and be excited like Charlie when he found the golden ticket to the Chocolate Factory

Fitment & Installation

This model fits the following applications Campagnolo brakes:

The BSA30 Bottom Bracket is built to meet the demands of various riding styles

Kolossos ST Oversized Derailleur Cage - GRX CERAMIC OVERSIZED DERAILLEUR PULLEYS Built for optimal shifting accuracyKolossos, derived from the Greek word for a statue much larger than its original subject, aptly describes this oversized derailleur cage. By replacing your stock 12 tooth pulleys and cage with a 14 tooth top pulley and a 19 tooth bottom pulley mounted on the stiffest cage available, you can achieve reduced friction, improved shifting accuracy, and enhanced chain retention. Kolossos users appreciate the smooth shifting, quiet ride, and seemingly