Wiseco 452M07150 Pro-Lite 71.50mm 2-Stroke Forged Piston Kit

The Wiseco 452M07150 is a high-performance forged piston kit designed for 2-stroke off-road engines with a 71.50mm bore diameter. Built from high-silicon, low-expansion aerospace-grade aluminum alloy, this piston delivers superior strength, reduced weight, improved heat transfer, and extended service life compared to cast alternatives.

Each piston is CNC-machined to exacting tolerances using a diamond-turned finishing process, ensuring a precise fit with virtually no size variation. The optimized piston shape and skirt profile are engineered to maximize horsepower, torque, and throttle response throughout the RPM range.

Kit Contents:

• Forged aluminum piston (71.50mm bore)
• Ring set — 2815CD 71.50mm ring set
• Piston pin — 18mm x 2.362" non-chromed (S343)
• Round wire pin locks / circlips — 18mm (CW18, pair)

Key Features:

• Forged from high-silicon, low-expansion aluminum alloy for maximum strength and durability
• CNC-machined for high precision and tight tolerances
• Diamond-turned finish eliminates size variation for a perfect cylinder fit
• Optimized piston profile improves engine efficiency and peak power output
• Race-proven design trusted by top motocross and off-road teams worldwide
• Compatible with cast iron lined cylinders; oversize pistons require cylinder boring or re-sleeving
• Manufactured in the USA

The 452M07150 is an oversize piston kit intended for engines requiring cylinder reconditioning. Installation of this oversize piston requires professional cylinder boring or re-sleeving to the appropriate bore size. This kit carries Wiseco's reputation for over 70 years of piston engineering excellence across motocross, off-road, and powersports applications.