Wossner Standard Series Piston Kit for 250cc 4-Stroke Engines

Elevate your motorcycle's engine performance and reliability with the Wossner Standard Series Piston Kit. Engineered for 250cc 4-Stroke engines, this high-performance piston replacement ensures superior durability and power output, making it an essential component for any serious rebuild or upgrade.

Description

The Wossner Standard Series Piston Kit is meticulously crafted to deliver exceptional performance and longevity for your 250cc 4-Stroke engine. Each piston is precision-forged from aerospace-grade aluminum alloy, providing an optimal balance of strength and reduced weight. This advanced construction, combined with optimized machining in critical areas like the crown and skirt wall, ensures sustained integrity under extreme operating conditions. The piston features a permanent Molybdenum Disulphite (Moly) skirt coating, specifically designed to minimize friction, reduce piston rock, and aid in the critical break-in period. This results in quieter operation, improved engine efficiency, and extended engine life. With a bore size of 73.50 mm and an oversize of +0.50 mm, alongside a robust 10.2:1 compression ratio, this Wossner piston kit is engineered to meet and exceed the demands of high-performance motorcycle applications. The comprehensive kit includes the piston, high-quality nitride coated steel and cast rings, a wrist pin, and retaining clips, providing everything needed for a complete and confident engine rebuild.

Features & Highlights

• Advanced Forged Construction: Crafted from aerospace-grade aluminum alloy, ensuring exceptional strength, durability, and a lightweight design for superior engine response.
• Friction-Reducing Moly Coating: Features a permanent Molybdenum Disulphite skirt coating to significantly reduce friction, minimize piston rock, and facilitate a smoother engine break-in, leading to quieter operation and extended component life.
• Optimized Performance Machining: Precision-machined for lightness without compromising strength in critical areas like the piston crown and skirt wall cross-section, enhancing overall engine efficiency and reliability.
• Complete Rebuild Kit: Each Wossner Piston Kit includes the forged piston, high-quality nitride coated steel and cast rings, wrist pin, and retaining clips, providing all necessary components for a thorough engine overhaul.
• High Compression Ratio: Engineered with a 10.2:1 compression ratio, optimized for improved power delivery and combustion efficiency in 250cc 4-Stroke engines.
• Oversize Bore Availability: Designed with a +0.50 mm oversize bore (73.50 mm) for precision fitment and the flexibility to accommodate various engine rebuild scenarios.

Technical Specifications

• Model: Standard Series
• Units: Kit
• Bore Size: 73.50 mm
• Piston Size: +0.50 mm
• Piston Diameter: 73.45 mm
• Displacement: 250 cc
• Engine Type: 4-Stroke
• Compression Ratio: 10.2:1
• Piston Material: Forged Aluminum Alloy
• Skirt Coating: Molybdenum Disulphite
• Ring Material: Nitride Coated Steel, Cast
• Vendor Part Number: 8646D050