- A compact caliper to fit in rear triangles with space constraints - 2 piston version of the RX4+ road/gravel calipers with similar power - Does not include lever but can be paired with road shift/brake levers (specific Shimano and SRAM versions available) - New bleed nipple design for easier bleeding - Includes: caliper and hose fittings only - *Rotors and adapters sold separately - Mineral oil verion is compatible with: Shimano Dura Ace Di2 R9270 / R9170 / R9120 / R9200 Ultegra Di2 R8170 / R8100 / R8070 / R8170 / R8020 / 105 Di2 R7170 / R7020 / Di2 R785 / RS685 / GRX RX820 / RX810 / RX600 / RX400 / RX815 Di2 / RX817 Di2 as well as Campagnolo Ekar / Super Record / Record / Campagnolo H11
