Octane One 2-PCS Pro Crankset The lightest & strongest Octane One tubular cromoly crankset comes in a popular & trendy two piece format. Designed as a complete set dedicated for MTB frames with a unique external bottom bracket included. 170mm crank arms made from high quality seamless 4130 cromoly tubing with full heat-treatment. The 19mm diameter hollow axle with 48 micro-splines eliminates the need of pinch-bolts making this crank arm lighter & gives it a clean look. By moving the bearings out of the frame we are not limited to small weak bearings. We use strong Spanish BB 19mm bearings in external alloy cups & the result is wider & stiffer system w/o weight penalty. Right side sprocket mount only &8211; this is a MTB set. Will accept any BMX sprocket with standard 15/16” or 19mm central hole & standard mounting hole (23t & bigger sprocket sizes). The chain line is perfect for MTB! Octane One 2-PCS Pro Crankset
Features: 2.5pcs crank set, 1 side bolt only