Shimano ZEE FC-M640 incl. bottom bracket BSA 68/73mm Single 36T

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  • ZEE provides a rock-solid platform to support aggressive riding on mountain trails. This is one groupset that gives you the confidence to find your flow and handle even the gnarliest of downhill rides. If you’re a newcomer to gravity riding, ZEE is the perfect place to start.


    The ZEE FC-M640 crank is designed for the rigors of gravity riding with thick-wall 2-piece cranks, a strong, steel axle, and steel pedal inserts. Chainrings include 34, 36, and 38T.

    • Strong thick-wall 2pcs-crank arm
    • Strong steel axle
    • Steel pedal insert
    • Choices of spec
      • FC-M640 68/73mm bottom bracket
      • FC-M645 83mm bottom bracket
      • Press-Fit bottom bracket compatible
      • 34T/36T/38T

    • Weight: 906g (FC-M640, 36T, 170mm, without bash guard) 938g (FC-M645, 36T, 170mm, without bash guard)

    • Model number: FC-M640
    • Series: ZEE M640
    • Average weight: 828 g (38T), 817 g (36T), 807 g (34T)
    • 2-piece crank construction: Yes
    • Chain line (mm): 50.4
    • Chain ring combination: 38T, 36T, 34T (FC-M640/M645 chainring)
    • Compatible BB type: Outboard
    • Compatible chain: HG-X 10-speed
    • Crank Arm Length: 165 mm, 170 mm, 175 mm
    • Crank fixing bolt included: Yes
    • Gear arms: 4 arm
    • P.C.D. (mm): 104
    • Rear speeds: 10
    • Recommended BB Pressfit: SM-BB71-41A
    • Recommended BB Threaded (E-type): SM-BB52
    • Recommended BB Threaded (normal): SM-BB52
    • Threaded BB Shell Width: 68 mm, 73 mm
    • Q-factor (mm): 174.7
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  • This article cannot be shipped to countries outside of the European Union and all other countires of the European Free Trade Association (EFTA).
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