Description
Shifts stay crisp thanks to e*thirteen shift know-how and the anodized aluminum resists flex under heavy power. Pair with a dual width Guidering M and you are ready to go. Replaces 15t or 17t cog on existing cassette. Extra strong at base to prevent flex, stand-offs brace EX cog against casÂsette rings or carrier. Includes longer B-limit screw for proper adjustment.