Wiseco 566M05700 Pro-Lite Forged Piston Kit Bore - 57.00mm

The Wiseco 566M05700 Pro-Lite Piston Kit is a precision forged piston assembly designed for two-stroke powersports engines requiring a 57.00mm bore diameter. Purpose-built for riders and racers who demand reliable top-end performance, this kit delivers the durability and precision Wiseco is known for.

Wiseco forges each piston from high-silicon, low-expansion aluminum alloy, a material chosen for its superior strength-to-weight ratio, excellent heat transfer characteristics, and resistance to deformation under high-rpm stress. The result is a piston that outlasts cast alternatives and maintains tighter tolerances over its service life.

Key Features:

• Forged high-silicon, low-expansion aluminum construction for superior strength and reduced weight
• 57.00mm bore diameter — oversize fitment ideal for worn or bored cylinders
• Diamond-turned CNC finish ensures precise sizing with zero variation between pistons
• Compatible with cast iron, chrome, Nikasil, and boron composite cylinder bore compositions
• Oversize availability extends the service life of cast iron lined cylinders
• Replacement cylinder sleeves allow chrome, Nikasil, and boron composite cylinders to be resleeved for oversize piston fitment
• Kit includes piston, rings, circlips, and wrist pin (unless otherwise noted)

The 566M05700 is part of Wiseco's Pro-Lite lineup, engineered to meet the demands of both competitive racers and recreational riders. Each piston is manufactured in Wiseco's state-of-the-art CNC facility to ensure consistent quality and exact fitment right out of the box.