The XT M8000 Single 142mm Crankset Without Chainring from Shimano is a high performance crankset from the classic MTB group. The cranks are Forged Hollow Tech II aluminium to offer unrivalled strength-to-weight ratio & a 70 degree spider arm for optimal rigidity. This set contains cranks only & must be run with SM-CRM80 DCE chainrings & 11-speed HG-X MTB chains. It has a 50 mm chain line for use with 135/142 mm rear axle width & the stiffness & strength has been increased with advanced design due to use with wider spaced bearings & an oversized axle. Available in Black only in 165mm, 170mm, 175mm or 180mm.