Wiseco RE819M09500 Racer Elite 4-Stroke Piston Kit - Standard Bore 95.00mm, 14.0:1 High Compression

Bore: 95.00mm
Compression: 14.0:1 High Compression
Sizing: Standard Bore

SPECIFICATIONS.
Displacement: 439cc.
Bore - Standard: 95.00mm.
Bore - Actual: 95.00mm.
Stroke: 63.40mm.
Compression Ratio - Actual: 14.0:1

100% fully machined billet piston. Dyno Proven Horsepower Improvement along with High Engine Load Durability. Reduced Friction for increased performance - the first and only asymmetrical piston in the market for 250cc and 450cc. applications!. Customized Top Piston Ring and Matching Precision Machined Ring Groove provide improved ring seal, equals Power Increases!. ArmorGlide Skirt Coating for Optimum Piston Performance, Reducing Friction Improving Power!. DLC Coated Wrist Pin - F1 technology offering the best in friction reduction and reduced wear.

Vehicle Fitment:

2006-2009 Yamaha YFZ450
2012-2013 Yamaha YFZ450
2009-2022 Yamaha YFZ450R
2011 Yamaha YFZ450X