Wiseco 509M05100 Forged Piston Kit Bore Oversize - 51.00mm 1.50mm 2-Stroke

The Wiseco 509M05100 is a forged piston kit machined to a 51.00mm bore diameter (+1.50mm oversize), designed for 2-stroke powersports engines. Each kit includes the piston, rings, circlips, and wrist pin for a complete top-end service solution.

Key Features:

• Forged High-Silicon Aluminum Construction: All Wiseco pistons are forged from high-silicon, low-expansion aluminum alloy, delivering superior strength, reduced weight, improved heat transfer, and extended service life compared to cast alternatives.
• Diamond-Turned CNC Finish: Precision CNC turning centers produce a flawless surface finish with zero size variation, ensuring consistent fitment and reliable sealing every time.
• Universal Cylinder Compatibility: Engineered for use in cast iron, chrome, Nikasil, and boron composite cylinder bore compositions with complete confidence.
• Oversize Options for Cylinder Restoration: The +1.50mm oversize profile extends the service life of worn cast iron-lined cylinders. Chrome, Nikasil, and boron composite cylinders can be resleeved to accept Wiseco oversize pistons.
• Complete Kit: Includes piston, rings, and circlips. Wrist pin is included unless otherwise noted.

Wiseco's state-of-the-art computerized manufacturing facility is dedicated to producing the finest forged pistons available for both high-performance racers and recreational riders.