ITEM NAME:Bicycle Motorised Gas Motor 2 Stroke 48cc 80cc Engine Part Clutch Flower Nut Description: Good material,hight quality and durable. 100% Brand new clutch adjust flower nut. Fit for 48cc 80cc engine motorized bicycle bike A perfect replacement for your old or broken one. Easy to install, No installation instruction. Specification: Material: Metal Diameter of Disc: Approx. 22 mm / 0.87 inch Diameter of Centre Hole: Approx. 5 mm / 0.20 inch Package Includes: 1 Piece Clutch Flower Nut Note: Please ensure this part fits for your bike before order. SKU: DMO0000379367005329.Fit for 48cc 80cc engine motorized bicycle bike. 1 Piece Clutch Flower Nut. Easy to install, No installation instruction.