Wiseco 176M06500 Forged Piston Kit Oversize - 2-Stroke 65mm 1.00mm

The Wiseco 176M06500 is a forged aluminum piston kit designed as a +1.00mm oversize replacement, delivering a finished bore size of 65.00mm. Built on a stock engine bore and stroke of 64.0mm x 57.0mm, this kit is engineered for 2-stroke powersports engines and is manufactured entirely in the USA in Mentor, OH.

Wiseco pistons are forged from high-silicon, low-expansion aluminum alloy, offering superior tensile strength, reduced reciprocating weight, improved heat transfer, and extended service life compared to cast alternatives. Each piston receives a diamond-turned CNC finish, ensuring precise sizing with zero variation and compatibility with cast iron, chrome, Nikasil, and boron composite cylinder bore compositions.

Kit Includes:

• 1 Wiseco forged aluminum piston
• Piston ring set (Ring P/N: 2559CD)
• Wrist pin (Wrist Pin P/N: S256)
• 2 wrist pin circlips (Circlip P/N: CW16)

Key Specifications:

• Bore Size: 65.00mm
• Oversize: +1.00mm over stock
• Stock Engine Bore x Stroke: 64.0mm x 57.0mm
• Cylinder Prep Required: Bore & Hone
• UPC: 193564132109

Wiseco's 2-stroke piston legacy spans over 80 years, with dedicated forgings and precision machining optimized for each specific engine application. The result is an ideal strength-to-weight ratio that maximizes engine efficiency, torque, and throttle response for both competitive racers and recreational riders alike.