Wossner Piston Yamaha XT660R 04+ size:Piston B (+0.01mm) HD (Heavy Duty - 6

HD (Heavy Duty - 6 Ply) version with reinforced carcass

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Yamaha XSR 900 (2016 to 2021)

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Wossner Piston Yamaha XT660R 04+ size:Piston B (+0.01mm) HD (Heavy Duty - 6Wossner is Germany's finest aftermarket forged piston and rod manufacturer and have over 25 years of experience in the high performance racing industry. Top European racers and FIM World Champions rely on Wossner for only the best pistons, rods and customer service. Features In house designed and manufactured; all forgings are produced in Wossner's company owned forging operation 4 stroke pistons are made using a double bridged forging design