Free 2-Day Shipping on Orders Over $50* — Limited Time Only
Take 10% Off Your Entire Order* »

Shimano XTR Hollowtech II 2x10 FC-M985 Crankset

Out of Stock

Item # SHI000V

Don't worry though, we have a lot more Mountain Cranksets in stock than that.

View Similar Products
Item # SHI000V


If you like more gear options, the XTR Trail is for you. On the other hand, if you like to hammer out of the saddle and have little use for redundant ratios, Shimano's Hollowtech II 2x10 FC-M985 Crankset will fit the bill.

For strength and efficiency, the FC-M985 XTR Crankset uses Shimano's Hollowtech II hollow cold-forging process. This makes for a crankarm assembly that is both lighter and stronger than designs with solid arms. Adding to that, the outer chainring is hollow too, and the advanced 3D shape is stiffer and more resistant to deflection when making quick shifts up to the big ring.

Also, the chainrings are shaped according to Shimano's HG-X tooth profile design. What this means is that the shifts are optimized, and the simplification to two rings makes them fast and crisp. The XTR Race 2x10 comes in four crankarm lengths -- 170, 172.5, 175, and 180mm.

You can also choose between 28/40t and 30/42t configurations. It comes complete with an XTR Hollowtech II bottom bracket. The XTR Race 2x10 Crankset uses a unique 88mm Bolt Circle Diameter, meaning only XTR double rings will fit -- the Trail triple and 28/36t double cranks do not share this BCD.

Finally, Shimano gives the XTR Hollowtech II 2x10 FC-M985 Crankset a 6mm narrower Q-factor than the M980 Trail crankset for to aid spinning -- essential to cross-country efficiency.

Tech Specs

Arm Material:
Arm Length:
170 mm 175 mm, 180 mm
Chainring Sizes:
28 / 40 T, 30 / 42 T
Bolt Circle Diameter:
88 mm
BB Type:
Hollowtech II
BB Threading:
Shimano Hollowtech II
Recommended Use:

Reviews & Community


Write a review

    Add a:
  • Photos
  • Videos

No file chosen

Rather attach a photo from your computer?


Only jpg, jpeg, png, gif or bmp files please.

Submit ReviewCancel

One of the Best

  • Familiarity: I've put it through the wringer

While this is now the outgoing generation of the XTR crankset, they still are one of the best XC cranksets around. While everyone is going to a single ring setup, I still prefer having two rings (and somedays still miss having a triple ring setup because of the 46T outer ring).

These cranks are stiff, solid, and flat out just work. They may not be fancy and made from carbon but they can take a beating and keep on going. I've got a set that have survived three different frames over the past two years and they are still going strong.

The chainrings do wear out but with two rings the wear will be higher than running three rings. If you have massive legs and a VO2 like sled dog go for the 42/30 ring setup.