WISECO 77mm HC PISTON KIT YAMAHA YZ250F 2008-2011, Comp 14:1

Part No. 56-W4952.WI.HC
2008 - 2011 Yamaha YZ250F YZF250,
Wiseco 4976M07700 77.00mm 14:1 Compression 250cc Motorcycle Piston Kit.
Dedicated forging for lightweight and superior strength Race ready dome design for improved combustion flow

Armor glide skirt coating provides reduced friction (racing applications only) Piston kit includes piston, rings, wrist pin and circlips Bore Size: 77.00mm 14:1 Compression Skirt Coated