Wossner Piston Yamaha YZ250F '01-'04 / WR250F '01-'13 76.97mm HC Pro thumpstar Fits most KTM 2011+ and

Fits most KTM 2011+ and Husqvarna 2014+ offroad and dual sport fuel-injected models including TPI bikes

Straight Valve

Laser-cut shells calculated crumple zones and now our new AREM TECHNOLOGY an innovative new approach that has stood up to our harsh and rigorous lab testing proving over and over again that it will keep you and your head safer than ever before

Dune Buggy

Please note that: The only real way to test your CDI box is to swap it out with another known good unit from the same year / make / model

Wossner Piston Yamaha YZ250F '01-'04 / WR250F '01-'13 76.97mm HC Pro thumpstar Fits most KTM 2011+ andWossner 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