PISTON KIT 92-98 YZ250 69.00, WOSSNER 8023D100 YAMAHA MX

$184.90
1

Wossner forged piston kit 8023D100 for two-stroke models, featuring a 69.00mm bore size (+1.00mm oversize). This German-manufactured piston has an elliptical profile for uniform expansion under heat, minimizing stress and preventing piston collapse. Specifications include an actual diameter of 68.94mm, compression height of 36.00mm, stroke of 68.00mm, displacement of 246 cm³, and a piston clearance of 0.06mm. It is designed for a 2-stroke compression ratio. Components include lock CW18, pin WP033, ring set RSB6850 x2, and rod P2029.

Specifications
SKU
56-W677_100_WO
Brand
Wossner
Availability
In Stock (1)
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
69.00mm
Variant Id
257460
Shipping OptionsShown at checkout
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wossner Forged Piston Kit for Yamaha YZ250 and WR250

This Wossner forged piston kit is engineered for optimal performance and durability in your Yamaha YZ250 and WR250 two-stroke motorcycles. Manufactured with precision in Germany, this kit features a +1.00mm oversize fitment for enhanced engine capacity. The advanced elliptical profile is designed to expand uniformly with engine heat, minimizing stress concentrations and preventing piston collapse. This intelligent design ensures efficient heat transfer from the combustion chamber to the cylinder wall, contributing to consistent and reliable engine operation.

Key Features

  • Forged piston construction for superior strength and extended lifespan.
  • Elliptical piston design promotes even pressure distribution during thermal expansion.
  • Helps to prevent piston collapse by reducing localized stress points.
  • Optimized for effective dissipation of combustion heat.
  • Precision manufactured in Germany to high quality standards.

Specifications

  • Bore Size: 69.00mm (+1.00mm oversize)
  • Actual Diameter: 68.94mm
  • Compression Height: 36.00mm
  • Stroke: 68.00mm
  • Displacement: 246 cm³
  • Piston Clearance: 0.06mm
  • Compression Ratio: Compatible with 2-stroke (Wossner and OEM)

Included Components

  • Piston Kit Part No: 8023D100
  • Lock: CW18
  • Pin: WP033
  • Ring Set: RSB6850 x2
  • Rod: P2029