First Look: OneUp Components Shimano XT Narrow/Wide Chainrings

Best known for their narrow/wide chinrings and expanders for rear cassettes, OneUp Components is please to add another chainring to the mix. This time it's for the new 11-speed Shimano XT M8000 and MT700 cranks. It saves 35 grams and $20 USD over the stock XT (SM-CRM80) single ring.


  • Material: 7075-T6
  • Chainline: 49mm
  • Weight: 45g (30T), 51g (32T), 60g (34T)
  • Compatibility: Shimano XT M8000 1X and 2X armsets and MT700 2X armsets
  • Colors: Black
  • Price: $55 USD

Stock M8000 chainring bolts are different lengths for 1X and 2X cranks. The narrow/wide chainrings for XT M8000 include bolt shims. This allows you to reuse your stock Shimano hardware and saves you buying a new bolt pack.

For the best Shimano 11-speed single ring setup, OneUp recommends a narrow/wide chainring and expanded 11-45 cassette for a greater range. Their recent 45T expander sprocket is compatible with both M8000 XT and M9000 XTR 11-40 11 speed cassettes.

Available now at


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