First Components

First Components R-MXX Narrow Wide 76mm BCD Chainring

  • Sale
  • $21.00
  • Regular price $65.99


  • *28t, 30t, 32t, 34t, 36t, or 38t (Your Choice)
  • Color: Black
  • Perfect for a 1x setup drivetrain
  • Narrow-Wide tooth profiling ensures ultimate chain retention with 1x chains
  • Tooth profile alternates thickness by inner and outer links for maximum chain control
  • Compatible with XX1 cranks and other 76mm BCD Cranks
  • Optimized for 1x drivetrain without the need for a chain guide
  • Quality CNC machining done in Taiwan (just like Sram & Race Face)
  • Machined from Premium 7075 Aluminum Stock
  • 4 bolt x 76mm BCD (Remember 76mm BCD is asymmetrical)
  • Chainrings at a fraction of the price of Sram's XX1 Chainrings