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Ships within 48 hours · Estimated delivery Aug 18 - Aug 23
choose cross seals
The all-new Kogel Speed Kolossos for Shimano GRX 2x (11 & 12-speed
Change up your Kolossos Oversized Derailleur with our anodized titanium screws
Whether you're racing criteriums
Compatibility with popular brands like Rotor
EZ Install Bundle derailleurtype-Campagnolo choose cross sealsLooking for the easiest way to up the performance of your bike? A home mechanic can install our EZ Install bundle in no time. Ceramic Oversized Derailleur Pulleys: Full ceramic or hybrid ceramic pulleys reduce drivetrain friction, improve shifting accuracy, and outlast standard plastic pulleys. Ceramic Bottom Bracket: Extremely reliable and efficient bottom brackets that increase bottom bracket stiffness. Stem & Bottle Bolts: Improve the performance
