PISTON KIT 88-91 YZ250 69.50, WOSSNER 8134D150 YAMAHA MX
Wossner forged piston kit with a 69.50 mm bore and 69.44 mm piston diameter (+1.50 mm oversize). This piston features an elliptical design for uniform bearing contact, improving reliability under thermal expansion and high load. Forged in Germany, it offers exceptional strength and thermal efficiency. Specifications include an engine displacement of 246 cm³, a stroke of 68.00 mm, 0.06 mm clearance, 36.00 mm compression height, and a 2-stroke compression ratio. Cross-reference part numbers: Piston Kit 8134D150, Lock CW18, Pin WP033, Ring Set RSB6950 x 2. Weight: 346g.
- SKU
- 56-W605+150.WO
- Brand
- Wossner
- Availability
- In Stock (1)
FULL DESCRIPTION
Wossner Forged Piston Kit - Yamaha YZ250 / WR250 (Oversize)
This Wossner forged piston kit is designed for Yamaha YZ250 and WR250 motorcycles. It features a 69.50 mm bore size with a piston diameter of 69.44 mm, representing a +1.50 mm oversize. This specification makes it ideal for engines that require increased cylinder clearance or have undergone cylinder refinishing. Forged in Germany, this piston is engineered for exceptional strength and efficient thermal performance. The elliptical design promotes uniform bearing contact and reduces wear, enhancing reliability under high thermal loads and stress.
Key Features
- Forged piston construction for superior strength and durability.
- Optimized design for effective heat transfer.
- Elliptical piston shape ensures even pressure distribution and minimizes wear.
- Manufactured in Germany with high precision standards.
Specifications
- Bore Size: 69.50 mm
- Piston Diameter: 69.44 mm
- Engine Displacement: 246 cc
- Stroke: 68.00 mm
- Clearance: 0.06 mm
- Compression Height: 36.00 mm
- Compression Ratio: 2-stroke (compatible with Wossner and OEM specifications)
Wossner Part Cross-References
- Piston Kit: 8134D150
- Lock Ring: CW18
- Piston Pin: WP033
- Ring Set: RSB6950 (Quantity: 2)
