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  • Shimano XTR FC-M9000-1 1x Race Crank Arms
  • Shimano XTR FC-M9000-1 1x Race Crank Arms Detail
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ShimanoXTR FC-M9000-1 1x Race Crank Arms
Sale 18% Off$302.57 $368.99

Item # SHI003B

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  • Grey, 170mm ($302.57)
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Item # SHI003B

Shimano weighs in, and weighs very little, on the 1x discussion.

Certain competitors of Shimano have demonstrated the market's demand for a single-chainring mountain crankset, and no wonder: they're tough, light, reliable systems that save hassle for both shops and riders. Being the keen observers of the industry they are, then, the company has released the Shimano XTR FC-M9000-1 1x Race Crank Arms, along with its all-new XTR M9000 groupset.

The new XTR M9000 crank arms do not deviate enormously from Shimano's consistently-proven formula of hollow-armed alloy arms with proprietary spider and ring technology, and we are grateful for this, although there are notable enhancements. The adaptation of an 11-speed platform allowed engineers to hit the reset button on a few areas. Of note is the fact that the left-side crank arm is now hollow-bonded, a manufacturing process that saves weight over previous production methods without giving up strength. The right arm likewise boasts reduced weight while also playing host to a new four-bolt spider that is compatible with all double or single chainring configurations that Shimano now makes for the new 9000-series cranks. The spindle and arms themselves, without a bottom bracket, weigh a remarkably light 583 grams.

The Shimano XTR FC-9000-1 1x Race Crank Arms are available in 170mm or 175mm lengths. The system is designed specifically for M9000 chainrings to be used with the new XTR M9000 11-speed drivetrain. Neither chainrings nor a bottom bracket are included. The Race version of the M9000 crankset features a 158mm-wide Q-factor — narrower than the 168mm Trail version — which boosts pedaling efficiency for racers but makes it incompatible with certain dual-suspension frame designs. Please double-check with us that the Race cranks will fit on your frame before ordering.

  • Hollow crank arms with 4-arm spider
  • 158mm Q-factor
Tech SpecsWeight
Tech Specs
Arm Material
Arm Length
170 mm 175 mm
Chainring Sizes
30 - 36 t
Bottom Bracket
not included
BB Type
multiple available
Compatible Components
Shimano XTR M9000 11-speed drivetrains only
Recommended Use
Manufacturer Warranty
3 years

Claimed Weight

Claimed weights are provided by the vendor.

Have questions? Chat with a Gearhead

[30t, no BB} 583 g

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Will this crankset work on BOOST frame set?

Hey Scot - This is not a BOOST specific crankset, you would be better off with any Race Face crank (spacing works with BOOST) or something like the Shimano XT FC-M8000-B1 Boost 1x Crank (Item #SHI00AX). Feel free to contact me directly to discuss your options or with any additional questions.

- Kyle L. - Expert Gearhead