BSD's Substance XL Crank gets a serious upgrade for the V2 model, with a new invest cast boss design sitting fully flush with the crank arm eliminating sharp edges around the ankles. They feature a heat-treated 4130 Chromoly, XL 24mm diameter CNC machined 48-spline hollow spindle and heat treated 4130 chromoly arms with a rectangular cross section for increased stiffness and grindability. The BSD Substance XL V2 Crank is both RHD and LHD compatible. ###section### Product Specs Crank Type: 2.5 Piece Drive Type: Bolt Drive Spindle Diameter: 24mm Drive Side: Left & Right Compatible Includes BB Bearings: Yes Weight: 861g (30.4oz) ###shogun-image-section### Colour: Flat Black, Chrome; Size: 160mm, 170mm, 175mm, 165mm