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Reduces heat build up
The DH-1 works with all 5–13 speed derailleur chain and 1/8" width BMX and track chain
The Mxxxxxo is constructed of heat-treated Columbus Niobium Spirit tubing
The rolling resistance is also not negatively affected by the PolyX Breaker
Shimano Dura-Ace RT-CL900 Ice-Tech Centerlock Disc Rotor carted Reduces heat build upDesigned for the demands of modern road, gravel and XC racing, the Shimano RT CL900 ICE TECHNOLOGIES FREEZA Disc Rotor delivers exceptional braking consistency, outstanding heat management and whisper quiet performance on even the longest descents. As Shimanos flagship DURA ACE rotor, the RT CL900 is engineered to maintain confident braking under extreme conditions while remaining incredibly lightweight. The updated rotor arm design improves rigidity
