Top End

• Replacement ring set for Wossner 4-stroke piston - Yamaha Sidewinder B-TX SE w/153" Track (2018, 2017); Yamaha Sidewinder R-TX LE w/137" Track (2019, 2017, 2018); Yamaha Sidewinder X-TX SE 1000 w/141" Track (2019, 2020, 2017, 2018); Yamaha Sidewinder...

• Replacement ring set for Wossner 4-stroke piston - Yamaha Phazer 500 (2014, 2009, 2007, 2010, 2015, 2013, 2008, 2012, 2011); Yamaha Phazer 500 GT (2016, 2007, 2009, 2010, 2014, 2011, 2015, 2013, 2017, 2008, 2012); Yamaha Phazer 500 Mountain Lite (2010,...

• Replacement ring set for Wossner 4-stroke piston - Yamaha Attak 1000 (2007, 2006); Yamaha Apex L-TX 1000 (2008, 2006, 2010, 2009, 2007); Yamaha Apex M-TX SE 1000 (2009, 2007, 2008, 2010); Yamaha Apex Vector GT (2008, 2006, 2007, 2010, 2009); Yamaha...

• Replacement ring set for Wossner 4-stroke piston - Yamaha Attak 1000 (2007, 2006); Yamaha Apex L-TX 1000 (2008, 2006, 2010, 2009, 2007); Yamaha Apex M-TX SE 1000 (2009, 2007, 2008, 2010); Yamaha Apex Vector GT (2008, 2006, 2007, 2010, 2009); Yamaha...

• Replacement ring set for Wossner 4-stroke piston - Honda XR185 (1984, 1980, 1987, 1986, 1981, 1985, 1982, 1983); Honda XR200 (1982, 1985, 1990, 1999, 2000, 1980, 1981, 1983, 1986, 1997, 1998, 2002, 2001, 1994, 1993, 1995, 1984, 1987, 1988, 1991, 1992,...

• Replacement piston kits for M-Spec big bore cylinder • 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 • Made in the USA -...

• Replacement piston kits for M-Spec big bore cylinder • 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 • Made in the USA -...

• Replacement piston kits for M-Spec big bore cylinder • 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 • Made in the USA -...

• Replacement piston kits for M-Spec big bore cylinder • 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 • Made in the USA -...

• Reduced valve train noise from start up to shut down • Close tolerances for low leak down rates • Fast pump up and superior high rpm performance • Each Precision Lifter is hand assembled to exacting tolerances and designed for quiet operation and rapid...

• R&D developed to provide dyno-proven power gains • Asymmetric skirt design for improved wear and even loading on major thrust skirt • Precision fit ring; custom-lapped compression ring for improved power • 100% billet machined for superior...

• R&D developed to provide dyno-proven power gains • Asymmetric skirt design for improved wear and even loading on major thrust skirt • Precision fit ring; custom-lapped compression ring for improved power • 100% billet machined for superior...