Supersprox - MX Stealth Rear Drive Sprocket (RST-990-39-BLK) Options:39T - Black Lycra Balaclava with two holes

Lycra Balaclava with two holes for the eyes only

Completely redesigned shell and shield system

Excellent handling and feedback: Aggressive profile

Brand Model Year YAMAHA Big Bear 350 2X4 YFM350U 1996-1999 YAMAHA Big Bear 350 4x4 YFM350FW 1996-1999 YAMAHA Big Bear 350 YFM350F 1997-1998 YAMAHA Big Bear 400 2x4 YFM400 2000-2004 YAMAHA Big Bear 400 Prof

these are made of hard plastic to further protect the dust seal and the main oil seal on the forks

Supersprox - MX Stealth Rear Drive Sprocket (RST-990-39-BLK) Options:39T - Black Lycra Balaclava with two holesSupersprox stealth is about longer life, without compromising weight. Primary goal, to last 3 times longer than an aluminum sprocket and remain as light as possible. It's about performance and function first and last. Its perfect for any bike up to 1400 cc. Do you have a powerful 4 stroke or performance street bike? Covering high mileage or road racing, then this is your best option. A single sprocket can last more than 20,000 miles (See maintenance