Specifications: Color: Silver Material: Metal Screwdriver size: 128 mm/5.0inch Rider plate diameter: 80 mm/3.15 inch Collar Nut Diameter: 25 mm /0.98 inch Thrust Washer Diameter: 42 mm/1.65 inch Weight: 150g Packing List: 1×Thrust Washer 1×Rider Plate 1×Collar Nut 1×Screwdriver