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Medium profile and tread spacing for riding quickly and confidently over a mixed variety of terrains
Compatible with 11 speed Di2 GRX and road derailleurs
For HG 9-speed chains
Quick-release attachment for easy installation and removal
Durable steel barrel
SM-RTEM810 Tools Medium profile and tread spacingSHIMANO RT EM810 disc brake rotors for speed sensor systems deliver powerful and consistent brake performance in all riding conditions. The ICE TECHNOLOGIES FREEZA rotor significantly reduces heat build up in the brake system to ensure consistent high performance braking even on the steepest downhill stretches. CENTER LOCK disc brake system Narrow type disc brake rotor High heat dissipation by radiator fin For rear only with magnet bracket Recommended
