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Hope RX4+ SL Post Mount Disc Brake Caliper

 
 
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BrandHope

Hope Technology is based in Lancashire, North UK and operates a 24-hour facility to produce premium quality CNC machined and anodised bike parts. Their top-notch products range from hydraulic disc brakes, hubs and wheels, stems and cranks to high output lights, and much more. The precision and tolerance of their products guarantees the highest performance and longevity.

Hope RX4+ SL Post Mount Disc Brake Caliper
Hope RX4+ SL Post Mount Disc Brake Caliper Hope RX4+ SL Post Mount Disc Brake Caliper Hope RX4+ SL Post Mount Disc Brake Caliper Hope RX4+ SL Post Mount Disc Brake Caliper Hope RX4+ SL Post Mount Disc Brake Caliper Hope RX4+ SL Post Mount Disc Brake Caliper Hope RX4+ SL Post Mount Disc Brake Caliper Hope RX4+ SL Post Mount Disc Brake Caliper Hope RX4+ SL Post Mount Disc Brake Caliper Hope RX4+ SL Post Mount Disc Brake Caliper Hope RX4+ SL Post Mount Disc Brake Caliper Hope RX4+ SL Post Mount Disc Brake Caliper Hope RX4+ SL Post Mount Disc Brake Caliper Hope RX4+ SL Post Mount Disc Brake Caliper

For 2026, the RX4+ has been refreshed as the RX4+ SL, featuring a new bore cap that adopts the narrower design first introduced on the GR4 and TR4 to reduce overall caliper width and improve compatibility with a wider range of frames. It also incorporates the bleed nipple design from the RX2, making bleeding simpler and cleaner. Together, these focused updates make the RX4+ SL more user-friendly while maintaining the powerful, reliable performance riders expect.

Features

  • DOT and Mineral oil compatible versions (Please note that these system will work only with their specified oil)
  • New bleed nipple design for easier/cleaner bleeding
  • New bore cap design decreases overall width of the caliper for better frame compatibility
  • Slimline 4 piston lightweight design
  • Monobloc design creates a stiffer caliper reducing the fuzzy lever feel and brake pad rub
  • Available in all Hope anodised colours
  • Top entry pad fitting
  • CNC machined from 2014 T6 aluminium

For Use With DOT Oil Systems Only

SRAM compatible calipers drop bar brake systems (DOT fluid)

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

For Use With Mineral Oil Systems Only

RX4+ Caliper is designed to work with Shimano and Campagnolo dropbar brake systems.

Shimano Compatible Calipers

  • 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

Campagnolo Compatible Calipers

  • Ekar
  • Super Record
  • Record
  • Campagnolo H11

Note: Not suitable for IS mount fork and frames.

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