278-22 CNC transmission sprocket. 22T

For those running the later 4-speed Big Twins, this PBI 22-tooth transmission sprocket offers the perfect blend of modern manufacturing and classic fitment. It is CNC machined from 8620 alloy steel, a material known for its exceptional toughness and wear resistance. After machining, the sprocket undergoes a heat-treatment process and is finished with nickel plating to ensure it stays looking good and performing well for years. This specific 22-tooth version is designed to fit 1979 to 1985 4-speed Big Twin models. It provides a reliable connection between your transmission and rear wheel, ensuring every bit of power reaches the ground. This sprocket is sold individually and is a must-have for any serious gearbox overhaul.