Wiseco 754M05550 Pro-Lite 2-Stroke Piston Kit 55.50mm Oversize

The Wiseco 754M05550 Pro-Lite piston kit delivers proven performance for 2-stroke off-road motorcycles with a 55.50mm bore diameter. This is a 1.50mm oversize piston designed for cylinder boring and re-plating applications, perfect for restoring compression and performance in worn engines.

Pro-Lite Series Performance:

Wiseco's Pro-Lite series represents decades of 2-stroke piston engineering expertise, combining race-proven design with reliability for all-purpose riding. Each piston is forged from aerospace-grade aluminum alloy and CNC machined for optimal cam shape and profile, delivering enhanced throttle response and reduced rotational mass for quick acceleration on track or trail.

Key Features:

• Dedicated forging process using aerospace aluminum alloy for superior strength-to-weight ratio
• CNC machined for precise tolerances and optimal performance
• Horizontal slot-pin oiling design reduces friction and provides scuff resistance
• Pressure seal groove engineered for maximum ring seal and sustained power
• Lightweight construction for enhanced throttle response and reduced rotational mass
• Race-proven design chosen by top race teams worldwide

Complete Kit Includes:

• Pro-Lite forged piston
• High-performance piston rings
• Wrist pin
• Circlips

Important Installation Notes:

This oversize piston requires cylinder sleeving and/or bore and re-nickasil plating services. Only Wiseco replacement ring sets should be used on Wiseco pistons for optimal performance and longevity. Standard bore size is 54.00mm; this piston expands bore to 55.50mm for 1.50mm oversize application.