Race optimized doubles focus your effort.

Technical Documents
  • 2 gear combinations to fit for XC and Trail
  • Good gear combination for climbing hill
  • Better shifting performance
  • Close ratio gear combination
  • 2x10 gear option specific conditions
  • Narrow Q-factor crank
  • HG-X chain and specific design teeth
Model Number FC-M785-S
Series Deore XT
Crank Construction Hollowtech II technology
Cassette Compatibility 10
Chain Compatibility HG-X 10-speed
4-Arm Chainrings Yes
Chainring Sizes
Bolt Circle Diameter
Crank Arm Length 165,170,175,180mm
Crank Arms
Outer Chainring 38T
Middle Chainring
Inner Chainring 24T
Chainring Bolts & Nuts Yes
Chain Guard No
Chaincase Compatible No
Bottom Bracket SM-BB70 SM-BB71-41A
E-type FD Compatible
Chain Line 48.8mm
BB Shell Width -
Average Weight