Designed to work perfectly with your 2x10 or 2x9 speed set up and in conjunction with your front derailleurSeamless AM performance and retention while maintaining maximum gear ratios6061-T6 aluminium backplate saves weightDirect mounted bashguard keeps rocks away from chainrings48-53mm chainline compatibleAdjustable sliders accommodate up to 32T or 40T ringsAll alloy hardware and flush captive fixing save weight and increase clearanceUpper shark fin stops chain wander on rough tracksSwappable, smooth running dual stealth lower rollerFour BB fitment optionsBuilt for AM/GravityApprox. Weight 149 grams