Wossner 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 Lightweight pistons with the tightest piston-wall clearances in the industry give you a quieter running engine All pistons include piston, ring, wrist pin and pin locks Wossner pistons are used by leading Supercross, Arenacross and MX GP teams Made in Germany Specifications Piston Size: 78.45mm Oversize: +0.50mm Replacement Rings: 790XDS Replacement Wrist Pin: WP090 Replacement Circlip: CW17 Fits: Honda TRX350ES RANCHER 2WD 2000-2005 TRX350FE FOURTRAX RANCHER 2000 2002-2003 2005 TRX350FM 4WD RANCHER 2000-2006 TRX350TE RANCHER 2001-2006