Pay in 4 interest-free payments of $56.25 Learn more
Ships within 48 hours · Estimated delivery Aug 30 - Sep 4
gravel-worthiness
It fits 11 and 12 speed Ultegra and Dura Ace derailleurs
Our Performance Bundle offers a noticeable improvement in your drivetrain at a competitive price
Previous generations might have used the short version
BR-RX400-R
Shimano Speed Kolossos Oversized Derailleur Cage - GRX 2x (11- and 12-speed, mechanical & Di2) Color:Black gravel-worthinessKogel Speed Kolossos for Shimano GRX 2x (11 & 12 Speed, Mechanical & Di2): The Fastest Oversized Derailleur Cage for Gravel Gravel doesnt mean slow. The all new Kogel Speed Kolossos for Shimano GRX 2x (11 & 12 speed, Mechanical & Di2) is designed to bring unmatched efficiency and performance to mixed terrain riding. Whether you're racing gravel, tackling epic adventures, or just looking for a smoother, more efficient drivetrain, this oversized
