Product Description Technical Information:Application:MTB, Freeride, DownhillCrank Arm Material:OPTIM aluminium (20 % stronger than aluminium 7050)Bottom Bracket:BSA83, PF30/83 (optional other bottom bracket widths are possible using a spindle kit)Axle Diameter:30 mmCrank Arm Length:165.0 / 170.0 mmCompatibility:10-/11-speedFeatures:incredibly light and stiffwith new Cinch System (all common axle standards can be covered with one crank)also suitable for fatbikes with 100 mm BSA Note: The appropriate tool from Cyclus Tools can be used to assemble the chainring. Contents:2 x Race Face Atlas Cinch crank armnot incl. chainringsnot incl. bottom bracket Weight: black | 165,0 mm | without chainring: 690 g (mit 36 Z. Kettenblatt) Manufacturer: FOX Factory GmbH Gewerbepark 6 66989 Höhfröschen Germany info@ridefox.com