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Ships within 48 hours · Estimated delivery Aug 28 - Sep 2
It sits just inside your left crank
Built for optimal shifting accuracy and chain retention—essential for XC
accurate shifting and oversized pulleys to reduce drivetrain friction
This model fits the following applications Campagnolo brakes:
Kolossos ST Oversized Derailleur Cage - GRX CERAMIC OVERSIZED DERAILLEUR PULLEYS It sits just inside yourKolossos, 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
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