ACERA HYPERDRIVE CRANKSET (3X9-SPEED)

Hyperdrive system for best front shifting. Wide variation for various choices.

  • pretty_bullet.png Crankset (3x9-Speed)
  • pretty_bullet.png Smooth/light action shifting peformance
  • pretty_bullet.png HYPERDRIVE technology
  • pretty_bullet.png High rigidity, easy assembly
  • pretty_bullet.png 44-32-22T, 48-36-26T

Product Specs

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Model Number FC-M391
Series Acera
Cassette Compatibility 9
Chain Compatibility Super Narrow HG for 9-speed
4-Arm Chainrings Yes
Crank Arm Length 170mm,175mm
Outer Chainring 44T / 48T
Middle Chainring 32T / 36T
Inner Chainring 22T / 26T
Chainring Bolts & Nuts Yes
Chain Guard Option
Chaincase Compatible Chain Case Compatible Crank Arm
Bottom Bracket BB-UN26(-K)
Chain Line 50.0
BB Shell Width LL123(-K)