PISTON KIT 10-13 CRF250 76.80, 8775DA WOSSNER HONDA, 13110-KRN-A40
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Wossner forged piston kit with a 76.80mm bore size (76.76mm actual). Features a two-ring configuration and is made in Germany for superior strength and efficient heat transfer. The elliptical profile ensures even thrust load distribution, minimising wear and risk of collapse under thermal stress. 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, 19.50 g theoretical weight, CW16 lock part number, WP070 pin part number, and 768XAS-2 ring set part number. Cross-references OEM part number 13110-KRN-A40.
- SKU
- 56-W950.A.WO
- Brand
- Wossner
- Availability
- In Stock (2)
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
- 258327
FULL DESCRIPTION
Wossner Forged Piston Kit for Honda CRF250
This Wossner forged piston kit is engineered for high-performance applications, offering superior strength and durability. Designed with a two-ring configuration, it provides enhanced sealing and improved combustion efficiency. The piston features an elliptical profile that ensures even thrust load distribution, minimizing wear and preventing distortion under thermal stress.
Key Features
- Forged piston construction for exceptional strength and longevity.
- Two-ring design enhances sealing and combustion performance.
- Elliptical piston profile promotes uniform thrust load distribution.
- Optimized for efficient heat transfer to cylinder walls.
- Precision manufactured in Germany.
Specifications
- Bore Size: 76.80mm (actual 76.76mm)
- Displacement: 249 cm³
- Stroke: 53.80 mm
- Clearance: 0.04 mm
- Wossner Compression Ratio: 14.20:1
- OEM Compression Ratio: 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-2
Cross-Reference OEM Part Numbers
- 13110-KRN-A40
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
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