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Shimano XTR FC-M9120-1 11/12-speed Boost Crank without Chainring

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Shimano XTR FC-M9120-1 11/12-speed Boost Crank without Chainring

The Shimano XTR FC-M9120 1-speed Boost crank stands for highest drive efficiency at low weight. With her, Shimano has properly advanced the 1-speed evolution. It offers optimum power transmission and maximum speed for the new XTR systems, which only use 1 chainring – and is compatible with the new 11- and 12-speed cassette.

Tough single power for cross country, marathon and enduro racers: Shimano XTR 11/12-speed Boost Crank FC-M9120-1

It’s lighter. It’s stiffer. It’s smoother. What else would you expect from next gen XTR? Optimal power transfer for maximum speed? Boost? Splined interface chainring? Don’t worry, you get it all!

Features – XTR FC-M9120-1 11/12-speed Boost Crank

    • FC-M9120-1 Q-Factor 168mm
    • Compatibility
        • 1×11-speed with CS-M9110-11 cassette 10-45 + RD-M9100-GS rear derailleur
        • 1×12-speed with CS-M9100-12 cassettes 10-45 and 10-51
    • Mounting system Direct mount (Lighter and stiffer design & easy exchangeable chainring by direct mount and one key release)
    • O.L.D 148mm
    • Chainring SM-CRM95 Available in different gradations (30-32-34-36-38) – Chainring is not included!

Product features

    • Use: MTB
    • Group: XTR M9100
    • Model: FC-M9120-1
    • Gradation: Chainring is not included!
    • Q-Factor: 168mm
    • Threaded BB shell width: 68 / 73mm
    • Gear rear: 11-speed (Wide Flange) / 12-speed
    • Construction: Hollowtech II
    • Compatible Chain: CN-M9100 12-speed
    • Crank arms: 4 arm
    • O.L.D: 148mm
    • Chain line: 52mm

Crank Arm Length

    • 175mm


    • Crank arm: Aluminum Anodized
    • Crank axle: Steel Plated


    • approx 511g with chainring (manufacturer information)
Crank Arm Length

Chainset Type


Bottom Bracket Size / Axle Width

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