RX4+ Flatmount DOT Caliper – Designed to fit on Flatmount Front and Rear mounts with an adapter to allow the use of 180/160mm front and 160/140mm rear rotors dependent upon mount type.   RX4+ Flatmount DOT Caliper – Designed to fit on Flatmount Front and Rear mounts with an adapter to allow the use of 180/160mm front and 160/140mm rear rotors dependent upon mount type*. For use with DOT Oil systems only. Compatible with: Sram Red eTap AXS Sram Red Sram Force eTap AXS Sram Force Sram Rival Sram Apex Sram S900 Front/Rear Flatmount caliper Drop bar hydraulic calipers Slimline 4 piston lightweight design Monobloc design creates a stiffer caliper reducing the fuzzy lever feel and brake pad rub Available in 6 different colours DOT Oil Brake Fluid Only **Mount not supplied**