PISTON KIT 05-07 YZF250 77mm, WOSSNER 8614DB 3-RING
Wossner forged piston kit with a 77.01mm bore and a 3-ring design. This piston is engineered for optimal combustion chamber heat transfer and a uniform bearing surface under heat expansion, which reduces localized pressure and piston collapse. Manufactured in Germany, this piston features an elliptical design for even thrust load distribution. Specifications include a bore of 77.01mm, standard size piston part number 8614DB, lock part number CW16, pin part number WP059, ring set part number 770XAS, displacement of 249 cm³, stroke of 53.6mm, clearance of 0.04mm, OEM compression ratio of 12.50:1, dome volume of -4.50 cm³, and a compression height of 22.20mm.
- SKU
- 56-W189+00B.WO
- Brand
- Wossner
- Availability
- In Stock (1)
FULL DESCRIPTION
Wossner Forged Piston Kit 77mm 3-Ring
Enhance the performance and durability of your motorcycle engine with this Wossner forged piston kit. Engineered for precision and strength, this kit features a 77.01mm bore and a three-ring design to optimize combustion and sealing. Manufactured in Germany, Wossner pistons are renowned for their superior quality and performance.
Key Features:
- Forged piston construction for exceptional strength and resistance to extreme conditions.
- Three-ring design ensures superior compression sealing and reduced blow-by for maximum power output.
- Optimized for efficient heat transfer to the cylinder walls, promoting uniform temperatures and reducing stress.
- Elliptical piston skirt design provides a uniform bearing surface, even under thermal expansion, preventing localized pressure and piston collapse.
- Precision manufacturing in Germany guarantees high standards of quality and reliability.
Specifications:
- Bore Size: 77.01mm (0.01mm oversize)
- Piston Type: Standard size (PN# 8614DB)
- Lock Ring Part Number: CW16
- Wrist Pin Part Number: WP059
- Ring Set Part Number: 770XAS
- Engine Displacement: 249 cm³
- Stroke Length: 53.6mm
- Piston to Cylinder Clearance: 0.04mm
- Dome Volume: -4.50 cm³
- Compression Height: 22.20mm


