Custom Chrome - MotorFactory Transmission Sprocket 273 21T 21 tooth Fit For Harley Sportster Model 1979-1984

A 21-tooth transmission sprocket, part number 273, for Sportster models from 1979 to 1984. Supplied by Custom Chrome as a direct replacement drivetrain component for chain final drive setups. Tooth count affects overall gearing, so match it to your intended final drive ratio.