2Bros Parts

PISTON KIT 85-86 CR125 54.25, WOSSNER 8127D025 HONDA MX

£122.21Only 1 left

4.1 Trustpilot 99.9% positive on eBay

Free UK delivery 2–4 business days

Spread the cost with Klarna 18+, T&Cs apply

1

The Wossner forged piston kit features a 54.25 mm bore (54.19 mm actual) and is designed for enhanced durability and heat management. This +0.25 mm oversize piston utilizes an elliptical design for even expansion and optimal thrust load distribution, manufactured in Germany for high performance and structural integrity. Features include a forged piston design for superior strength and thermal resilience, an elliptical shape for even bearing surface under heat expansion, and efficient heat transfer promotion from the combustion chamber to the cylinder wall. It reduces localized pressure and piston collapse risk. Specifications include a bore size of 54.25 mm (54.19 mm), piston part number 8127D025, lock part number CW14, pin part number WP025, ring set part number RSB5425 x 2, displacement of 124 cm³, stroke of 54.00 mm, clearance of 0.06 mm, 2-stroke compression ratio with Wossner & OEM, and a compression height of 28.00 mm.

Specifications
SKU
56-W563+025.WO
Brand
Wossner
Availability
In Stock (1)
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
54.25mm
Variant Id
256870
Delivery2–4 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wossner Forged Piston Kit 54.25mm - Enhanced Performance and Durability

Upgrade your motorcycle's engine with the Wossner Forged Piston Kit, engineered for superior performance and longevity. This high-quality piston features a 54.25 mm bore (54.19 mm actual size) and is designed as a +0.25 mm oversize replacement. Its advanced elliptical design ensures even expansion under heat, promoting optimal thrust load distribution and maintaining a consistent bearing surface. This translates to improved heat transfer from the combustion chamber to the cylinder wall, reducing localized pressure and the risk of piston collapse, even under demanding riding conditions.

Precision manufactured in Germany, Wossner pistons are renowned for their exceptional strength and thermal resilience. This kit is specifically designed for applications requiring enhanced durability and reliable performance.

Key Features:

  • Forged piston construction for superior strength and thermal resilience.
  • Elliptical piston shape ensures even bearing surface during heat expansion.
  • Promotes efficient heat transfer, aiding in cooling.
  • Reduces localized pressure points and the risk of piston collapse.
  • Precision-engineered and manufactured in Germany.

Specifications:

  • Bore Size: 54.25 mm (54.19 mm actual)
  • Piston Part Number: 8127D025
  • Lock Part Number: CW14
  • Pin Part Number: WP025
  • Ring Set Part Number: RSB5425 x 2
  • Displacement: 124 cm³
  • Stroke: 54.00 mm
  • Clearance: 0.06 mm
  • Compression Ratio: 2-stroke (Wossner & OEM)
  • Compression Height: 28.00 mm
Before you buy

QUESTIONS? JUST ASK

Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00.

Call or email us with your make, model and year 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

By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.

More answers in our FAQ.

Trade pricing available

Buying parts for your business? Apply for a 2BrosParts trade account.

Apply for Trade
1