Race Face Next 10 Spd Double Chainset: The Raceface NEXT cranks are one of the lightest, strongest, 100% carbon fibre cranks ever made. Race Face has created a crank that goes beyond existing carbon material & process limitations, setting a new benchmark in performance XC components. NEXT combines over seven years of Race Face composite technology with over fifteen years of crank development, producing a carbon crank with an unparalleled strength to weight ratio. The crank arms are completely hollow with all unnecessary material being removed from the centre core. The composite arms have no internal aluminum spine. Proven assembly friendly spline interface ensures fast, simple installation & easy serviceability using standard tools. Next features a specifically engineered, superlight, CNC machined Cr Mo BB spindle that is permanently moulded directly into the drive side crank arm to minimize weight & maximize power transfer. All alloy T-30 Torx hardware keeps weight down & coolness high. Crank bolt puller cap makes crank removal a snap with just an 8mm hex wrench. Hollow carbon with no internal aluminium spine Pedal & spindle inserts co-moulded Fitted with CNC machined Turbine rings All alloy T-30 Torx hardware CNC machined CRO-MO BB spindle Built for XC Weight: complete with bb 635g (26-38T, 175mm) 24/38T 104/64mm BCD 26/38T 120/80mm BCD 68/73mm