PISTON KIT 08-12 WR250X 77.00, COMP. 13.5:1 WOSSNER 8729DB
PISTON KIT 08-12 WR250X 77.00, COMP. 13.5:1 WOSSNER 8729DB - Image 2
PISTON KIT 08-12 WR250X 77.00, COMP. 13.5:1 WOSSNER 8729DB - Image 3
PISTON KIT 08-12 WR250X 77.00, COMP. 13.5:1 WOSSNER 8729DB - Image 4

PISTON KIT 08-12 WR250X 77.00, COMP. 13.5:1 WOSSNER 8729DB

£171.92

Wossner
Wossner
SKU: 56-W238+00B.WO

Brand: Wossner

Stock: 2

2 in stock

Categories: , ,
Size

77mm
Product Type

Pistons & Kits
Product Group

Engine
Catalogue

DIRT
Piston Diameter

77.0
Bore Diameter
Piston Grade
Compression Ratio

PISTON KIT 08-12 WR250X 77.00, COMP. 13.5:1 WOSSNER 8729DB

Wossner forged piston kit with a 77.01mm bore and 76.97mm diameter, designed for Yamaha WR250X models. Manufactured in Germany, this piston offers superior strength and design, ensuring optimal heat transfer to cylinder walls. Its elliptical design provides a uniform bearing surface under heat expansion, reducing localized pressure and evenly distributing thrust loads to prevent piston collapse.

Features

  • Forged construction for superior strength
  • Optimized heat transfer for efficient combustion
  • Elliptical design for uniform load distribution
  • Manufactured in Germany

Specifications

  • Bore: 77.01mm
  • Diameter: 76.97mm
  • Display (cm³): 249
  • Stroke (mm): 53.60
  • Clearance (mm): 0.04
  • Wossner Compression Ratio: OEM
  • OEM Compression Ratio: 11.80:1
  • Dome Volume (cm³): -5.90
  • Compression Height (mm): 22.90

Cross-Reference OEM Part Numbers

  • Wossner Piston Yamaha WR250X (PN# 8729DB)
  • Lock P/N: CW17
  • Pin P/N: WP083
  • Ring Set P/N: 770XAS-2

Vehicle Fitments

  • Yamaha WR250X (2008-2009)

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