The Rant Bangin 48 cranks are high quality cranks at a price you can afford. Available in black or chrome. Sizes include 165mm, 170mm, and 175mm. Click HERE to view all of our Rant crank sizes and colors. Full chromoly and heat treatment make these cranks the perfect replacement or upgrade crankset to any bike. The trapezoid chromoly shape helps prevent flex while still offering a grindable surface. SPECS: 4130 trapezoid shaped heat-treated tubular chromoly crank arms. 3pc design with 19mm – 48 spline heat treated chromoly spindle for the ultimate strength. Wrap-welded pedal bosses for increased strength. RHD / LHD compatible sprocket bosses. Spindle length: 140mm = aprox 5.5″. Weight: 35 oz.