Disc RS delivers powerful braking and precisely balances the performance characteristics important to racers and everyday riders alike. Provides extremely quiet operation in all environments. In wet, dry, snow and ice conditions the compound is noiseless. Fits Shimano Brake Caliper Models: XTR BR-M9120 / XT BR-M8120,BR-M8020 / SLX BR-M7120 / DEORE BR-M6120,BR-MT420 / SAINT BR-M820,BR-M810 / ZEE BR-M640 / BR-MT520 Fits TRP Brake Caliper models: Quadiem / Quadiem SL / Slate T4 Fits Tektro Brake Caliper models : HD-M750 / HD-M745 / HD-M735 / HD-E725