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2x Chain Retention System 39/42T ISCG Black (CH1680)

The 2x chain guide provides robust chain retention and chainring protection for 2x10 and 2x9 drivetrains.
  • Compatible with 9 and 10 speed drivetrains
  • Patent-pending dual pulley design provides precise chain engagement while reducing noise and drag
  • Integrated skid protects chainrings and glides over rocks and obstacles
  • Raised top fin profile prevents the chain from dropping to the BB shell
  • Modular skid saves 40g when removed
  • Alloy backplate
Item Specifications
Max Tooth42
Chainguide Mount TypeISCG
Harris Cyclery |::| 1353 Washington St., Newton, MA 02465 |::| 617-244-1040
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