Wiseco 543M06800 Pro-Lite Piston Kit Bore - 2-Stroke 68.00mm 1.00mm

The Wiseco 543M06800 Pro-Lite Piston Kit is a forged 2-stroke dirt bike piston kit precision-engineered for all-purpose off-road and motocross riding. Sized at a 68.00mm bore with a +1.00mm oversize, this kit is purpose-built for engines requiring a first oversize rebuild, delivering a stronger, more durable alternative to OEM cast pistons.

Wiseco's Pro-Lite line is the result of decades of 2-stroke piston development, incorporating aerospace-grade aluminum alloy forgings and CNC-machined cam profiles for optimized power output and long service life. Forged pistons feature a condensed, aligned grain structure that delivers superior mechanical strength, impact resistance, and durability compared to brittle cast pistons — making them the preferred choice for demanding racing and trail riding conditions.

Kit Includes:

• Forged Pro-Lite piston — 68.00mm bore (+1.00mm oversize)
• Wiseco piston ring(s)
• Circlips

Key Features:

• CNC-machined for optimal cam shape and profile for peak power and extended service life
• Dedicated aerospace alloy forgings for a superior strength-to-weight ratio
• Race-ready dome finish with smooth edges for improved combustion flow
• Horizontal slot-pin oiling reduces friction and provides scuff resistance
• Pressure seal groove for maximum ring seal
• Forged and machined entirely in the USA by Wiseco

Important: Only genuine Wiseco replacement ring sets are compatible with Wiseco pistons. Wrist pin is not included unless otherwise noted. Always measure your cylinder bore before ordering to confirm correct sizing.