PISTON KIT 10-13 CRF250 76.80, 8775DB WOSSNER HONDA
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This Wossner forged piston kit features a 76.81mm bore size (76.77mm actual), providing a +0.01mm oversize option. It has a two-ring configuration and is manufactured in Germany. The piston is engineered for high performance with superior heat transfer and structural reliability. Its elliptical design ensures even distribution of thrust loads under thermal expansion, minimizing wear. Specifications include a 249 cm³ displacement, 53.80 mm stroke, 0.04 mm clearance, 14.20:1 compression ratio (Wossner), 13.20:1 compression ratio (OEM), +0.10 cm³ dome volume, 29.00 mm compression height, and 19.50 g theoretical weight. Lock part number is CW16, pin part number is WP070, and ring set part number is 768XAS.
- SKU
- 56-W950.B.WO
- Brand
- Wossner
- Availability
- In Stock (1)
Fitments (8)
| Make | Model | Year |
|---|---|---|
| HONDA | CRF 250 | 2010 |
| HONDA | CRF 250 | 2011 |
| HONDA | CRF 250 | 2012 |
| HONDA | CRF 250 | 2013 |
| HONDA | CRF 250R | 2010 |
| HONDA | CRF 250R | 2011 |
| HONDA | CRF 250R | 2012 |
| HONDA | CRF 250R | 2013 |
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 76.80mm
- Variant Id
- 258332
FULL DESCRIPTION
Wossner Forged Piston Kit for Honda CRF250
Upgrade your Honda CRF250's performance with this high-quality Wossner forged piston kit. Engineered for durability and superior heat transfer, this kit is designed to optimize combustion and provide reliable performance for your motorcycle.
Key Features:
- Forged piston construction ensures maximum strength and longevity.
- Features a two-ring setup for enhanced sealing and performance.
- Elliptical profile design helps maintain even pressure distribution under thermal expansion, minimizing wear and reducing thrust loads.
- Optimized for efficient heat transfer from the combustion chamber to the cylinder walls.
- Manufactured in Germany, adhering to stringent quality standards.
Specifications:
- Bore Size: 76.81mm (actual 76.77mm)
- Displacement: 249 cm³
- Stroke: 53.80 mm
- Clearance: 0.04 mm
- Compression Ratio (Wossner): 14.20:1
- Compression Ratio (OEM): 13.20:1
- Dome Volume: +0.10 cm³
- Compression Height: 29.00 mm
- Theoretical Weight: 19.50 g
- Lock Part Number: CW16
- Pin Part Number: WP070
- Ring Set Part Number: 768XAS
QUESTIONS? JUST ASK
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Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.
Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. Delivery details
Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy
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