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  • Shimano - XT FC-M8000-B1 Boost 1x Crank Arms - Black
    Shimano - XT FC-M8000-B1 Boost 1x Crank Arms - Detail
  • Shimano - XT FC-M8000-B1 Boost 1x Crank Arms - Black
  • Shimano - XT FC-M8000-B1 Boost 1x Crank Arms - Detail
Shimano - XT FC-M8000-B1 Boost 1x Crank ArmsView Larger Image

Shimano XT FC-M8000-B1 Boost 1x Crank Arms

20% Off
$119.99 - $124.99 $149.99

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    • Black, 170mm
      sale $119.99
    • Black, 175mm
      sale $124.99
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    Tech Specs

    Arm Material:
    aluminum, stainless steel
    Arm Length:
    170mm, 175mm, 180mm
    Bolt Circle Diameter:
    96mm
    BB Type:
    BB-MT800 / BB-MT800-PA
    Recommended Use:
    cross-country, downhill, enduro, trail
    Manufacturer Warranty:
    2 years

    More everything.

    Shimano’s famous for its commitment to trickle-down tech and, sure enough, there’s plenty top-shelf inspiration to be found in the XT FC-M8000-B1 Boost 1X Crank Arms. Obviously, they’re designed to play nicely with Boost 148 rear axles, with a 3mm offset chainline that keeps your links running smoothly between cassette and chainring. The more expensive XTR’s Hollowtech II construction has also trickled down to XT, letting you save weight and cash, and the new 1x11 platform lets you enjoy so much gear that you’ll practically be moving backwards on those steep climbs.

    • Crank arms for efficient power transfer on varied terrain
    • Cold-forged aluminum construction provides lightweight strength
    • Hollowtech II construction reduces weight and maintains rigidity
    • 11-speed compatibility improves gear-range possibilities
    • Asymmetrical design enhances strength strategically
    • Compatible with 3d Composite Chainrings (sold separately)

    Reliable

    • Familiarity: I've put it through the wringer

    This is a reasonably priced reliable crank. XT is a workhorse groupset and will not let you down.

    Nice upgrade

    • Familiarity: I've used it several times

    Just bought a boost bike with low end cranks? Get these beauties and you are on your way to total domination.

    Great Crank

    • Familiarity: I've put it through the wringer

    Nice crank set at a great value.

    Lightweight. Durable.

    • Familiarity: I've put it through the wringer

    Because that's what defines XT, right? This is a great choice for people who are prone to bashing cranks on rocks, but still want something that is good quality and will hold up to said beating.

    Black bike, black cranks!

      These work perfectly for my custom SB6 build, and look really good with the matte black frame!

      Boost cranks

        Needed these for a newer boost frame. While they're not the cool metalic shiny finish of the XTR's, they still look pretty baller on a black bike.

        BOOST!

          Have you been boosted? I you have a boost frame then you need a boost compatible crank. This is shimano's offering. The difference is 3mm.