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Wiseco Pro-Lite Piston Kit (69.00mm Bore / +1.00mm Oversize) 560M06900
Wiseco Pro-Lite Piston Kit (69.00mm Bore / +1.00mm Oversize) 560M06900
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Wiseco Pro-Lite Piston Kit (69.00mm Bore / +1.00mm Oversize)
Part Number: 560M06900
Fitment: Yamaha YZ250 (1983–1987) & IT250 (1983)
Product Overview
Rebuild or upgrade your vintage 2-stroke top end with the Wiseco Pro-Lite Forged Piston Kit. Precision-engineered and manufactured in the USA, Wiseco pistons are CNC-machined from high-silicon, low-expansion aluminum alloy to deliver superior strength, thermal stability, and lightweight performance compared to original stock cast pistons.
The Pro-Lite design reduces reciprocating mass for crisp, responsive throttle feedback and faster RPM pickup, making it an excellent choice for keeping your classic Yamaha 250 running at peak performance.
Key Features & Benefits
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Forged High-Silicon Alloy: High-density grain structure for exceptional fatigue resistance and extreme durability.
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Pro-Lite Mass Reduction: Optimized profile minimizes piston weight for faster throttle response and smoother operation.
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Superior Heat Dissipation: CNC machined alloy transfers heat efficiently, preventing hotspots and detonation.
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Complete Assembly: Comes equipped with piston, high-performance rings, wrist pin, and circlips.
Package Includes
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1x Wiseco Forged Pro-Lite Piston (
560M06900) -
1x High-Performance Ring Set (
2717CD- 69.00mm) -
1x Wrist Pin (
S511) -
2x Circlips (
CW18)
Specifications
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Manufacturer: Wiseco
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MPN: 560M06900
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Engine Type: 2-Stroke ICE
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Cylinder Bore: 69.00 mm (+1.00mm Oversize)
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Piston Diameter: 68.95 mm
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Stock Bore Reference: 68.00 mm
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Displacement: 250cc
Fitment
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Yamaha YZ250: 1983, 1984, 1985, 1986, 1987
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Yamaha IT250: 1983
Fitment Notes & Requirements
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This is a +1.00mm oversize piston kit. Cylinder boring or honing to 69.00mm is required prior to installation. Always verify exact cylinder clearance prior to assembly.
Shipping & Store Policies
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Fast Shipping: Carefully packaged and shipped within 1 business day.
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Fitment Verification: Please confirm cylinder diameter and engine model year prior to purchasing.
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