Description: Diameter of Centre Hole: Approx. 20mm Diameter of Sprocket / Cog: Approx. 75mm Brand new and good working condition. High quality for rust and corrosion resistance. 18T 420 chain front sprocket cog for 110cc 125cc 140cc Pit Pro Bike /Trail Bike /Dirt Bike. Package Includes: 1 Piece 18 Teeth Front Sprocket Cog
