With its 24-32-42T chainring combination, the new Shimano XT M780 3×10 crankset delivers an entirely new level of ultra-smooth, precise and reliable shifts. Combine it with an 11-36T cassette and you’ll be nearly unstoppable, no matter where the trail leads.

The all-new Shimano SLX FC-M670 crank set is Dyna-Sys specific for a 10-speed mountain drivetrain. It features hollow-forged, 2-tone aluminum arms with a reinforced spider and an integrated, HollowTech-II (HT2) bottom-bracket spindle for improved power transfer. <p>The 3×10 Trail version, a 42/32/24 ratio, includes a wide-stance bottom bracket cupset with outboard bearings, which offers increased rigidity (fits both 68/73mm with included spacers) and is designed for a 50.0mm chainline.</p>

The new Shimano 105 FC-5750 10-speed compact crankset has shed an incredible 60 grams compared to the FC-5650. It features a larger gap between the top and low gear, for less chain rub in small gear combinations. Dual SIS front index shifting provides superior front shifting performance.

Answering the demand for one-by mountain drivetrains, Shimano has engineered the XTR FC-M9000-1 one-by Race Crank Arms, as part of the new XTR 9000 groupset, to be a light and reliable crank for those who prefer simplicity. The XTR M9000 crank arms are designed with the same hollow-armed alloy technology that Shimano uses on its double chainring drivetrains. The slight difference is that that left arm is now hollow-bonded to further reduce weight, without compromising durability and stiffness. Without the bottom bracket, the cranks weigh 583 grams. Meanwhile, the right crank arm now sports a four-arm spider that, regardless of the one-by designation, is compatible with all XTR 9000-series single and double chainring setups. It should be noted that the narrower Q-factor, 158mm, while increasing pedaling efficiency, will not work with several full-suspension frame designs.