Hope RX4+ Caliper Flat Mount - DOT Version 2022

125,00 €
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The Hope RX4+ caliper supersedes the RX4 caliper and builds on 25 years’ experience designing and manufacturing hydraulic disc brakes and transfers the knowledge and skills acquired into the world of Road and Cyclocross dropbar brakes.  A precision CNC machined monobloc design machined from 2014 T6 Aluminium results in a stiffer caliper to give unrivalled feel and modulation.  This RX4+ caliper is only DOT compatible (Sram systems) and is available in 6 colours (Blue, Orange, Red, Black, Purple, Silver) and comes with 2 sets of brake pads (Blue for road use and Red for Cyclo Cross andd Gravel use).

This version of the RX4+ caliper is made for Flat Mount 34 mm and allows the installation of 160 and 180 mm rotors depending on the frame / fork mount and the adapter


  • Calipers to suit Flat Mount 34 mm
  • Caliper designed to fit 160 & 180mm rotors depending on the fork / frame mount and brake adapter
  • Only compatible with DOT fluid system (SRAM)
  • Slimline 4 piston lightweight design
  • Monobloc design creates a stiffer caliper reducing the fuzzy lever feel and brake pad rub
  • Top entry pad fitting
  • CNC machined from 2014 T6 aluminium
  • Available in Black, Silver, Red, Blue, Purple and Orange

Brake compatibility

  • Sram Red eTap AXS
  • Sram Red
  • Sram Force eTap AXS
  • Sram Force
  • Sram Rival
  • Sram Apex
  • Sram S900

The kit includes

  • RX4+ Caliper
  • Brake pads Blue for road use
  • Brake pads Red for Cyclo Cross andd Gravel use
  • Bleeding serynge and adapter
  • Hose shortening kit
  • Mounting bolts


RX4+ caliper chart selection
Brake and Mounts caliper chart
RX4+ Exploded view

Technical details

Part number14690
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