Est. 1982

MRP 1 x CS ISCG-05 28-34t Chain Guide / Black


The 1x guide is the definitive cross-country chainguide. Used on the World Cup circuit and even in the Olympics, the 1x has a proven track record of dependability and performance.

The 1x is the perfect guide for riders and racers wanting a lightweight single-ring front drivetrain for cross-country use or riders wishing for more security out of their "narrow/wide" setups. All 1x guides feature the co-molded "TR" upper guide - lighter and quieter, what's not to love?

CS models use a proprietary composite backplate material that delivers stiffness, durability, and performance at an amazing price-point.


  • ISCG-05 range 28-34t. S3/ E-type range 28-36t.
  • Perfect for "clutched" 1x10 and 1x11 drivetrains, as well as those using chain-retaining rings (like our Wave Ring)
  • Tracked and grooved upper guide / backplate interface increases stiffness and eases installation
  • New co-molded "TR" upper guide with softer durometer interior for silent guidance
  • Oval compatible
  • Mounting hardware included and install possible with just a single 4mm HEX wrench.
  • Compatible with chainlines 49mm and wider