Shimano Deore XT FC-M8100-1 Crankset - 170mm 12-Speed 1x Direct Mount Hollowtech II Spindle Interface BLK ModelNumber=J2749 Gender/Age Adult Rotational Protection Yes

Gender/Age Adult Rotational Protection Yes Minimum Head Circumference 52 Color Velvet Black Size Medium Visor Included Yes Multi Impact No Weight 350 Helmet Certifications Complies with the U

Anti-drop design

Steel stamped cogs

Bolt Size M6 Frame Mount 22

Shimano Deore XT FC-M8100-1 Crankset - 170mm 12-Speed 1x Direct Mount Hollowtech II Spindle Interface BLK ModelNumber=J2749 Gender/Age Adult Rotational Protection YesThe Shimano Deore XT FC M8100 1 crankset for MTB offers the simplicity of a 1x drivetrain with the stability and compatibility of Hollowtech II technology. Chainring sold separately Hollow forged crank maximizes power transfer while limiting weight Shimano's Hollowtech II technology provides the best balance of stiffness strength weight and rotating performance Features 52mm chainline 172mm Q factor Rings Sold Separately Number of Chainrings No Rings