RX4-SH Caliper - Designed to work with Shimano and Campagnolo dropbar brake systems
(Mineral Oil, Shimano recommended for Shimano application, Campagnolo/Magura recommended for Campagnolo)
Dura Ace Di2 R9170 Super Record
Dura Ace R9120 Record
Ultegra Di2 R8070 Campagnolo H11
Ultegra R8020
105 R7020
Di2 R785
RS685
GRX600
RX4-SR - Designed to work soley with Sram dropbar brake systems (Dot Fluid)
Sram Red eTap
Sram Red
Sram Force
Sram Rival
Sram Apex
Weights from:
RX4 SH - 122g Inc pads
RX4 SR - 105g Inc pads