Improved performance for 2012 featuring Race Face\'s EXI splined axle interface50 grams lighter. DH performance at AM weightManufactured from Optim-AL. A strong fatigue resistant aluminium alloyNear net forged and fully CNC machined arms heat treated Cro-Mo axleRemovable granny ring spider for chain guide use6mm of chainline adjustment - ideal for chain guide compatiblitySpacers allow for the use of shorter bolts, saving weightBuilt for FR/DHWeight 822g (165mm, 36T ring with BB)68/73, 83mm.