We The People Legacy Crank style: RHD (right-hand drive) / LHD (left-hand drive) compatible material: full seamless Japanese 4130 crmo tubing | liquid post heat-treated spindle: 22mm | 48-spline spindle bolts: 15mm x 1mm (25,4 tpi) arm length: 175mm color: black additional information: 2 & 1/2pc design grind friendly square shape arms investment cast gusset on the pedal boss