The Renthal 203U-520-40GPSI Ultralight Rear Sprocket is a high-quality and durable sprocket designed for ATV and side-by-side vehicles. With its 40 teeth, this sprocket is specifically designed for optimal performance and efficiency. Manufactured by Renthal, a trusted brand in the industry, this sprocket is sure to provide reliable and long-lasting performance for your off-road adventures.                                 fitment                  250 1985-1992 z400 2003-2008 x400 2003-2006