Hollowtech II Technology - Providing the best balance of stiffness, strength, weight, and rotating performance.
  • pretty_bullet.png Trail Ride Specific HOLLOWTECH II crank arm
  • pretty_bullet.png Hollow forged
  • pretty_bullet.png Various gear combination
  • pretty_bullet.png Standard Q-factor (168mm)
  • pretty_bullet.png * 36/34T is hollow ,32/30T is not hollow
  • pretty_bullet.png ** 32T/30T is Titanium/Aluminum

Product Specs

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Model Number FC-M9020-1
Crank Construction HOLLOWTECH II Technology
Cassette Compatibility 11
Chain Compatibility Series Color
4-Arm Chainrings x (Spider arm angle is special)
Chainring Sizes 30,32,34,36T
Crank Arm Length 165 / 170 / 175 / 180
Crank Arms HOLLOWTECH crank arm
Chain Guard Without chain / bash guard
Bottom Bracket SM-BB93 / SM-BB94-41A
Chain Line 50.4
BB Shell Width 68 / 73