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Specifications

  • MPN: EFCU60402CX62
  • Model: FC-U6040-2
  • Series: Shimano CUES U6000
  • Speed: 2x9 and 2x10-speed
  • Crank arm length: 170mm
  • Chainrings: 46/32T, fitted
  • Bolt circle diameter: Asymmetric 110mm
  • Q-factor: 152mm
  • Chain line: 47mm
  • Construction: HOLLOWTECH II, hollow-forged
  • Bottom bracket type: Outboard, for 68 and 70mm threaded shells
  • Recommended bottom bracket: BB-RS501 threaded or BB-RS500-PB press fit, sold separately
  • Compatible chain: Shimano LINKGLIDE or HG 11-speed
  • Materials: Aluminum crank arms, aluminum outer ring, aluminum spider arm with painted finish
  • Included: Crankset with 46/32T chainrings. No chainguard, no bottom bracket parts.

FAQ

Which bottom bracket do I need?

Shimano lists the BB-RS501 for threaded frames and the BB-RS500-PB for press fit frames. Neither is included, so add one to your order. The crankset fits 68 and 70mm threaded bottom bracket shells and uses an outboard bearing interface.

Does it come with chainrings?

Yes. The 46/32T rings are fitted, so this is a complete crank and chainring set. What is not included is a chainguard or any bottom bracket parts, which is what the W/O CG and W/O BB PARTS notation on Shimano's packaging refers to.

What chain does the FC-U6040-2 run?

It runs a Shimano LINKGLIDE or HG 11-speed chain. CUES uses a single chain width across its 9, 10, and 11-speed drivetrains, which is one of the things that makes the platform simpler to service than running separate chains per speed count.

How does 46/32t compare to a road compact?

A road compact is typically 50/34t. The 46/32t here drops both rings, trading a little top end speed for easier climbing gears, which is the right tradeoff on gravel and loaded riding where you spend more time going up than sprinting. The FC-U6040-2 is also offered in 50/34T if you want the road-oriented ratio.

Best For

Gravel and all-road riders building or refreshing a Shimano CUES 2x drivetrain who want wide range gearing and Hollowtech II stiffness without stepping up to a road groupset price. A sensible choice for loaded touring, bikepacking, and mixed surface riding where the 32 tooth inner ring earns its keep on long climbs.

Shimano CUES FC-U6040-2 Crankset - 170mm | 9/10-Speed | 46/32t Reviews:

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