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  • Shimano - ZEE FC-M645 Crankset - Black

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  • Shimano - ZEE FC-M645 Crankset - Black

Shimano ZEE FC-M645 Crankset

sale $104.95 $127.9918% Off

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    • Black, 175mm
      sale $104.95

    2 Reviews


    When it comes to bang for the buck, Shimano's Zee components — like this 83mm bottom bracket-compatible Zee FC-M645 Crankset — are hard to beat. Thick-walled aluminum construction with a reinforced steel axle ensures flex and failure are absent from gravity-fueled runs.

    These two-piece cranks are 10-speed only and come with a 36t chainring. For added durability, Shimano gives the Zee cranks steel pedal inserts. The drive-side arm has a 104mm BCD, and it uses alloy chainring bolts. Shimano's Zee FC-M645 does not include a bottom bracket, and it comes in three lengths: 165, 170, and 175mm.

    • Item #SHI002B

    Tech Specs

    Arm Material
    Arm Length
    165 mm 170 mm, 175 mm
    Chainring Sizes
    36 t
    Bolt Circle Diameter
    104 mm
    Bottom Bracket
    not included
    BB Type
    external, press fit
    Compatible Components
    83mm BB shell
    Recommended Use

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Bombproof on a budget

    • Familiarity: I've put it through the wringer

    I love Saint and Zee components. They are a gold standard for downhill and freeride mountain biking. This crankset is strong, affordable, and easy to install. It even comes with an 83mm English threaded bottom bracket. Most cranksets these days don't include the bottom bracket. The 36t chainring in the picture is included as well.

    *This does include an 83mm English Threaded BB*

    What level is ZEE in comparison to SLX, XT, and XTR?

    I'd compare it to SLX. In terms of price, it's actually just a tiny bit cheaper than SLX. Essentially, it is Shimano's answer to an affordable version of their Saint DH group. Performance wise, it can take some major abuse and keep on kickin'