FEATURES - Use: MTB - Compound: Resin - Support: Steel - Cooling fins: No - Complete with spring and cotter pins - Delivered in an envelope or box depending on the supply COMPATIBILITY - Shimano with 4 pistons - XTR (BR-M9120) - XT (BR-M8120 / M8020) - SLX (BR-M7120) - Deore (BR-M6120) - Saint (BR-M810 / M820) - Zee (BR-M640) - Others (BR-MT520 / MT420)