Product Description Next SL combines Race Face's proven hollow arm technology with the Cinch interface. Imagine interchangeable spiders, unlimited chainring combinations, a 30mm aluminum axle and compatibility for all relevant frame standards. Possibly the most versatile crank you will ever own. Specifications:Application:Cross Country, Trail, Fat BikeCompatibility:1x10-speed, 1x11-speed, 1x12-speedChainring Mount:Cinch Direct MountTechnical Information:Series:Next SLCrank Arm Material:CarbonAxle Material:AluminumCrank Arm Length:170.0 mm, 175.0 mmAxle Diameter:30 mmCompatible BSA Shell Width:68 / 73 mmRecommended Bottom Bracket:PF30 (68/73 mm), Cinch BSA30 68/73 mmFeatures:hollow carbon crank armsdeep recesses for optimized stiffness30 mm axle diameter, CNC milled from a super-alloy that is 20 % stronger than the 7050 aluminum alloyinterchangeable spider offers the possibility to switch between existing chainring standards while remaining flexible for future developmentsspider: 104 / 64mm (Boost option available), 120 / 80mm, Cinch-Direct Mountmade in Canada with carbon from the USAContents:1 x Race Face Next SL Cinch cranksnot incl. bottom bracketnot incl. chainring Manufacturer: FOX Factory GmbH Gewerbepark 6 66989 Höhfröschen Germany info@ridefox.com