42T Sprocket
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42T Sprocket 42T Sprocket 42T Sprocket

OneUp Components

OneUp Components 42T Sprocket

4 in stock


87 grams
87 grams


Upgrade your 10 speed cassette to an awesome wide range cassette with the OneUp Components Sprocket. The OneUp Components Sprocket gives you 90% of the benefit of 1x11 systems at 10% of the cost. Incredibly simple to install, it fits behind most 11-36 cassettes, displacing one sprocket from the main cluster.

View sprocket installation instructions

View sprocket compatibility


  • Now including a FREE 16T Sprocket! - 16T sprocket provides more even cassette progression for smoother cadence and improved shifting
  • Compatible with most SRAM and Shimano 10spd components
  • Uses standard freehub driver bodies


  • Material: 7075-T6 (40/42), Chrome plated hardened steel, (16T)
  • Compatible Gearing: The OneUp adapter sprocket is compatible with most 10 speed mountain setups running an 11-36T or 12-36T cassettes
  • Warranty: 1 year