Get more from your Shimano 10-speed drivetrain with this Stronglight 42T cassette extender chainring. CNC-machined from 7075 aluminium and finished in black anodising, it slots into your existing setup as a conversion ring to widen your gear range — ideal for riders wanting easier climbing gears or a larger high-end ratio without upgrading the whole groupset.

  • 42-tooth cassette extender/conversion chainring
  • Designed for Shimano 10-speed drivetrains
  • 7075 aluminium, black anodised finish
  • Broadens gear range without a full groupset change
  • Stronglight precision CNC manufacture
SKU BPW-SL275563
Model # SL275563
Brand Shimano