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Item # SRM005O

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Item # SRM005O

Direct power.

SRAM's one-by drivetrain revolution may be the highlight of the mountain bike tech coming out of the innovative manufacturer's Illinois headquarters, but the X01 GXP Direct Mount Crankset may be a close second place. The X01 Direct Mount cranks effectively eliminate the spider for an interface that saves weight and is easily altered to make the most of your one-by setup across all terrain types.

And while that pre-ride versatility is a nice touch, it doesn't necessarily provide much solace when you're gasping in disbelief at your cranks on a steep climb when you're struggling just to turn over your granny gear. That's when you'll appreciate SRAM's efficiently stiff, lightweight carbon crank arms, which are the exact same as the arms featured on the XX1 model. The only difference between the X01 and its more expensive counterpart are subtle areas of machining on the chainring of the latter.

The chainring itself features X-Sync's tall, square teeth to engage the chain sooner on each rotation for maximum control so the chain doesn't get bored and wander off onto your pedal spindle. The teeth also alternate between narrow and wide with mud-clearing recesses in between in order to keep a hold on the chain even during deflections on mucky trails. It's finished with a built-in forged aluminum spider that sticks to the lightweight theme while carefully preserving the carbon crank arms' gains in efficiency.

  • Rally over destructive terrain with this streamlined crankset
  • Direct-mount design saves weight and creates slimmer interface
  • X-Sync chainring shaped to clear mud and debris
  • Chainring's tall teeth grab chain cleanly and securely

Tech Specs

Arm Material:
carbon fiber
Arm Length:
170 - 175 mm
Chainring Sizes:
32 t
Bottom Bracket:
not included
BB Type:
Compatible Components:
SRAM 11-speed 1x drivetrains
Claimed Weight:
645 g
Recommended Use:
mountain bike
Manufacturer Warranty:
2 years

Reviews & Community


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Would this work on my Santa Cruz 29 Hardball? If so what else would I need to buy to make it all work nice and silky smooth?

Hey Eric - You will definitely need the SRAM GXP Team Bottom Bracket (Item #SRM0378) to run these cranks on your Santa Cruz Highball. Depending on what drivetrain you have now you might also need a new cassette, rear derailleur, shifter and chain too. Feel free to contact me directly to discuss your options.

- Kyle L. - Expert Gearhead


  • Familiarity: I've used it several times

Burly crankset for the weight and the money. Can't beat the direct mount for aesthetics and stiffness. Also to note, the chainline is excellent and doesn't drop the chain off the large cog in the rear nor does it make much noise compared to 1x11 systems of the past. No complaints

Sleek and stiff

  • Familiarity: I've put it through the wringer

The new direct mount ring drops weight and offers a stiffer chain ring than the previous spider based cranks. My 175 X01 cranks with a 30T direct mount ring weighed in at 520g. The aesthetics are great, and the carbon crankarms are stiff and durable. Not much more you can ask for in a crank

Sleek and stiff

Dude, where's your Race Face Crank Boots.