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Code: FC-M912
Shimano XTR M9120 Boost Chainset Without Chainrings
The Shimano XTR FC-M9120  Boost chainset stands for highest drive efficiency at low weight. It offers optimum power transmission and maximum speed for the XTR systems, which only use's a single chainring and is compatible with the either 11 or 12 speed set-ups.
  • Boost
  • Lighter and stiffer design 
  • Direct Mount chainring fitment
  • Speed: 11/12 Speed
  • Q-factor: 168mm
  • Chainline: 52mm
  • Weight: 511g approx.