Shimano Direct Mount/Dura Ace/Ultegra/GRX - Sintered

With copper plated backing plate and sintered front for extreme conditions like down hill..

Direct Mount BR-RS505/805
Dura Ace BR-R9170
Ultegra BR-R8070 BR-R7070/BR-RS805/BR-RS505/BR-RS405/BR-RS305

GRX BR-RX810 BR-RX400