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RX4+ SL DOT Type Disc Brake Caliper

RX4+ SL DOT Type Disc Brake Caliper

The Hope RX4+ DOT type brake caliper has been refreshed as the RX4+ SL. The RX4+ SL caliper retains a precision CNC-machined monobloc design that results in a stiffer caliper to give unrivaled feel and modulation. In addition, it now features 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 now 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.


  • CNC-machined monobloc design creates a stiffer caliper reducing the fuzzy lever feel and brake pad rub
  • Slimline 4-piston lightweight design provides reliable and powerful braking
  • CNC-machined from high-quality 2014-T6 aluminum, offering high strength with the benefit of weight savings
  • Fully servicable design for an extended life
  • Bore cap adopts a narrower design first introduced on the GR4 and TR4 to reduce overall caliper width and improve compatibility with a wider range of frames
  • Incorporates the bleed nipple design from the RX2, making bleeding simpler and cleaner
  • Top entry pad fitting make removal or installation simple and fast
  • Versatile design fits 140, 160 & 180mm rotors
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From $55.78

Original: $159.36

-65%
RX4+ SL DOT Type Disc Brake Caliper

$159.36

$55.78
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Description

The Hope RX4+ DOT type brake caliper has been refreshed as the RX4+ SL. The RX4+ SL caliper retains a precision CNC-machined monobloc design that results in a stiffer caliper to give unrivaled feel and modulation. In addition, it now features 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 now 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.


  • CNC-machined monobloc design creates a stiffer caliper reducing the fuzzy lever feel and brake pad rub
  • Slimline 4-piston lightweight design provides reliable and powerful braking
  • CNC-machined from high-quality 2014-T6 aluminum, offering high strength with the benefit of weight savings
  • Fully servicable design for an extended life
  • Bore cap adopts a narrower design first introduced on the GR4 and TR4 to reduce overall caliper width and improve compatibility with a wider range of frames
  • Incorporates the bleed nipple design from the RX2, making bleeding simpler and cleaner
  • Top entry pad fitting make removal or installation simple and fast
  • Versatile design fits 140, 160 & 180mm rotors
RX4+ SL DOT Type Disc Brake Caliper | Sierra Bicycle Supply