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RX4 Postmount Caliper

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The RX4 caliper 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 results in a stiffer caliper to give unrivalled feel and modulation. Choose from Shimano or Sram depending on your lever.

Key Features

  • Post mount front and rear hydraulic caliper to suit dropbar set ups
  • Shimano or Sram specific caliper
  • Slimline 4 piston lightweight design
  • Monobloc design creates a stiffer caliper reducing the fuzzy lever feel and brake pad rub
  • Available in Black, Silver, Red, Blue, Purple and Orange
  • Top entry pad fitting
  • CNC machined from 2014 T6 aluminium
  • ***Please note***Shimano and SRAM brands belong to a third party and have no relation with Hope Technology’

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                                                                         Not currently compatible:
Di2 R785                                                                           GRX RX815 Di2
RS685                                                                               GRX RX817 Di2
GRX RX400   
RX4-SR - Designed to work with Sram dropbar brake systems (Dot Fluid)

Sram Red eTap AXS
Sram Red
Sram Force eTap AXS
Sram Rival
Sram Apex

Weights from:
RX4 SH - 102g Inc pads.
RX4 SR - 92g Inc pads.

**Note - Not suitable for IS mounts