DESCRIPTION
Option:
1, Crankset(no Guard): without Chainguard
2, Crankset(no Guard) + BB: without Chainguard, come with SM-BB52 Bottom bracket
3, Crankset(Guard): with Chainguard
4, Crankset(Guard) + BB: with Chianguard and SM-BB52 Bottom bracket
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Model: FC-M4050
Level: Alivio
Color: Silver Gray
Speed: 3x9 Speed
Chainring: 40-30-22T
Compatible chain: HG 9-speed
B.C.D.: 96mm
Arm length: 175mm
Chain guard: with chain guard / without chain guard
Bottom bracket type: Hollowthch II
Recommended bottom bracket: SM-BB52
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Model: SM-BB52
Type: Hollowthch II
Shell thread: BC1.37" x 24T
Shell width: 68/73mm
Weight: approx 95g
Fits Hollowtech II spindle
Sealed cups keep out dirt and water
Maintenance free, easy installation
With better sealing and rotation
Delivers high driving efficiency
