The Primo Pro Crank is made of heat treated chromoly and features a 3 piece design with dent prevention in mind.
- Spindle: 22mm Hollow Chromoly
- Spindle Bolts: 15x1mm Hollow Flush Mount (x2)
- Spindle Splines: 48
- Sprocket Bolt: 10x1.5mm (x1) / 8x1.25mm Nano (x1)
- Weight: 33.2 oz (w/o BB)