Wiseco 2355M07250 Pro-Lite XPS 2-Stroke Piston Kit 72.50mm +0.50mm Oversize

The Wiseco 2355M07250 is a Pro-Lite XPS Series forged 2-stroke piston kit engineered for Fuji-powered Polaris engines with an 805cc displacement. This kit delivers a +0.50mm oversize bore of 72.50mm (standard bore: 72.00mm) and is designed for a 3-cylinder configuration with a 65.00mm stroke. Built to outperform OEM pistons in both durability and power output, this kit covers a single cylinder.

Key Features:

• Dedicated aerospace-alloy forging — superior strength-to-weight ratio for instant throttle response and maximum torque
• CNC machined cam profile — precision-optimized piston shape for peak horsepower and extended service life
• Horizontal slot-pin oiling — reduces friction and provides scuff resistance for long-term durability
• Pressure seal groove — maximizes ring seal and combustion efficiency
• Race-proven design — trusted by top race teams across all forms of motorsport competition
• High-performance ring set — engineered for sustained power delivery and extended top-end life
• Precision alloy wrist pin — 18mm unchromed pin for consistent, true, and durable performance

Kit Contents (single cylinder):

• 1x Piston (72.50mm actual bore diameter)
• 1x Ring Set — Part #2854CD (72.50mm)
• 1x Wrist Pin — Part #S511 (18mm x 2.244", unchromed)
• 2x Round Wire Pin Locks (circlips) — Part #CW18 (18mm pair)

Specifications:

• Series: Pro-Lite XPS
• Engine Type: Fuji 2-stroke
• Displacement: 805cc
• Cylinders: 3 (kit covers 1 cylinder)
• Standard Bore: 72.00mm
• Oversize: +0.50mm
• Actual Bore Diameter: 72.50mm
• Stroke: 65.00mm
• Wrist Pin Diameter: 18mm

Please note: Top-end bearings, gaskets, and cylinder sleeves are not included unless otherwise specified. Wiseco piston kits are sold by application and bore size — ensure you have measured your cylinder bore and confirmed the correct oversize before ordering.