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MRP 1x CS Upper Chain Device | Chain Reaction Cycles


MRP 1x CS Upper Chain Device

The 1x CS from MRP is the result of 20+ years of chainguide experience with the help of design cues from the V3 series. This model shows off a robust and light glass-filled composite backplate alongside a durable nylon upper guide which adds major security to your 1x10, 11 or 12-Speed drivetrain for out of this world quality and performance.


  • Adds security to  "narrow/wide" 1x10/11/12 and XX1/X01 drivetrains
  • 28-34t range (oval compatible up to 32t)
  • Boost compatible
  • Glass-filled Composite backplate
  • Two-bolt ISCG-05 mount backplate
  • No crank or chainring removal required for installation
  • Weight: 33g

Buy MRP Components from Chain Reaction Cycles, the World's Largest Online Bike Store.


  • Colour: Black
  • Option: S3/E-Mount, ISCG-05

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