Wiseco PK1341 Pro-Lite 2-Stroke Forged Piston Kit 68.0mm (642M) for Suzuki RMX250

The Wiseco PK1341 is a complete Pro-Lite forged top-end piston kit purpose-built for the 1993–1999 Suzuki RMX250. Featuring a 68.0mm (1mm overbore) bore size, this kit delivers everything needed to properly rebuild the top end in a single purchase, with all components precision-matched to work together from the start.

Pro-Lite 2-Stroke Forged Piston Technology:

• Forged aluminum alloy construction — high-silicon, low-expansion alloy provides superior strength, reduced weight, improved heat transfer, and extended service life
• CNC-machined cam shape and skirt profile — optimized for peak horsepower and maximum service intervals
• Anti-detonation ring land grooves — eliminate ring blow-by while maximizing combustion efficiency
• Extra-lightweight piston design — delivers instant throttle response characteristic of Wiseco's Pro-Lite line
• Diamond-turned finish — precision CNC machining guarantees consistent sizing with no variation
• Compatible with all cylinder bore compositions — cast iron, chrome, Nikasil, and boron composite cylinders

Kit Includes:

• 1x Pro-Lite forged piston (68.0mm / 642M bore)
• High-performance piston ring set
• Alloy wrist pin
• Circlip retainers

Wiseco part number PK1341 corresponds to piston code 642M06800. Wiseco is the only U.S. manufacturer that produces powersport pistons exclusively using the forging process, ensuring each piston provides the highest strength-to-weight ratio available. This kit is an ideal solution for overboring a worn cylinder or performing a performance-focused top-end rebuild.