EZ Install Bundle derailleurtype-Campagnolo The all-new Kogel Speed Kolossos

The all-new Kogel Speed Kolossos for Shimano GRX 2x (11 & 12-speed

the Speed Kolossos for Shimano 11 and 12-speed is your new secret weapon

Change up your Kolossos Oversized Derailleur with our anodized titanium screws

Whether you're racing criteriums

Fits Rotor 30mm

EZ Install Bundle derailleurtype-Campagnolo The all-new Kogel Speed KolossosLooking 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