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: 86.45mm Oversize: Standard Replacement Rings: 865XSY Replacement Wrist Pin: WP026 Replacement Circlip: CW19 Fits: Honda TRX420FA IRS 4WD RANCHER 2009-2013 TRX420FA2 4WD RANCHER 2014-2016 TRX420FA2 4X4 DCT FOURTRAX RANCHER 2016-2020 TRX420FA6 IRS 4WD RANCHER 2015-2020 TRX420FE FOURTRAX RANCHER 2007-2013 TRX420FM 4WD RANCHER 2008-2013 TRX420FM1 4WD RANCHER 2014-2020 TRX420FM2 4WD RANCHER 2014-2020 TRX420FPA IRS 4WD RANCHER 2009-2014 TRX420FPE FOURTRAX RANCHER 2011-2013 TRX420FPM 4WD RANCHER 2009-2013 TRX420TE FOURTRAX RANCHER 2007-2013 TRX420TE1 FOURTRAX RANCHER 2014