2Bros Parts

PISTON KIT 84-85 CR250 67.00, WOSSNER 8156D100 HONDA MX

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Wossner forged piston kit for 1984-1985 Honda CR250R and ATAC250 models. Bore size 67.00 mm, actual piston diameter 66.94 mm. Features include increased strength, reliability, and engineered support for effective combustion heat transfer. Elliptical design promotes even thrust load distribution. Manufactured in Germany. Specifications: Display (cm³) 246, Stroke 72.00 mm, Clearance 0.06 mm, Compression height 38.00 mm. Wossner Piston Part Number: 8156D100. Lock Part Number: CW18. Pin Part Number: WP033. Ring Set Part Number: RSB6700 x2. Alternate Part Number: 56-W526.P4.WO. Weight: 340 grams.

Specifications
SKU
56-W526.P4.WO
Brand
Wossner
Availability
In Stock (1)

Fitments (9)

MakeModelYear
HONDAATC R 2501985
HONDAATC R 2501986
HONDACR 2501984
HONDACR 2501985
HONDATRX 2501985
HONDATRX 2501986
HONDATRX 2501987
HONDATRX 2501988
HONDATRX 2501989
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
67mm
Variant Id
256694
Delivery2–4 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wossner Forged Piston Kit - 67.00mm Bore

Enhance your motorcycle's performance with this high-quality Wossner forged piston kit. Engineered in Germany, this piston is designed for superior strength, durability, and optimal thermal efficiency. The forged construction provides increased resilience under high stress, while the advanced design promotes effective heat transfer from the combustion chamber to the cylinder walls, crucial for maintaining peak engine performance.

The piston features an innovative elliptical design that ensures a uniform bearing surface as the piston expands and contracts with temperature changes. This intelligent design minimizes localized stress and significantly reduces the risk of piston collapse, contributing to a longer engine life.

Key Features:

  • Forged piston for superior strength and reliability.
  • Designed for optimal combustion heat transfer.
  • Elliptical shape promotes even thrust load distribution and reduces stress.
  • Precision manufactured in Germany for exceptional quality.

Specifications:

  • Bore Size: 67.00 mm
  • Actual Piston Diameter: 66.94 mm
  • Displacement (cm³): 246
  • Stroke: 72.00 mm
  • Piston Clearance: 0.06 mm
  • Compression Height: 38.00 mm
  • Compression Ratio (2-Stroke): Specific to Wossner and OEM configurations.

Included Components:

  • Wossner Piston Part Number: 8156D100
  • Lock Ring Part Number: CW18
  • Pin Part Number: WP033
  • Ring Set Part Number: RSB6700 (x2)
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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.

UK delivery is £4.99, or free on orders over £60. Orders ship within 3 working days, then delivery takes 2–4 business days. 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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