Hope RX4+ Caliper
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Hope RX4+ CaliperHope RX4+ CaliperHope RX4+ Caliper
Code: HBSPC77
Hope RX4+ Caliper
The 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 results in a stiffer caliper to give unrivalled feel and modulation.
Hope are keeping with the current model of offering a Postmount caliper, Flat Mount Front Direct and Flat Mount Rear Direct calipers with the addition of a new Flat Mount caliper.
The RX4+ Caliper is designed to work with Shimano and Campagnolo dropbar brake systems. Mineral Oil, Shimano recommended for Shimano application, Campagnolo/Magura Oil recommended for Campagnolo.
  • Calipers to suit dropbar set ups - Flat Mount front & rear & Post Mount
  • Calipers designed to fit 160 & 180 rotors 
  • DOT Fluid Calipers will have Bore Caps with a D etched.
  • Mineral Oil Caliper will have Bore Caps with an M etched.
  • 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
  • Calipers for Mineral Oil will have M etched on the Bore Cap.
  • Calipers for Dot Fluid will have D etched on the Bore Cap.
G SAVAGEUpgraded from SRAM Force 1 and the difference is night and day. Superb power, endos on a gravel bike..
Mr SinkI installed the RX4s and it was pretty straightforward. I haven’t gotten to use them due to winter weather. Merlin cycles was great though, they got them shipped out quickly and I had the brakes in no time! I can’t wait to try these out! Thanks!