PISTON KIT 89-99 RM125 54.50, WOSSNER 8055D050 SUZUKI MX
4.1 Trustpilot 99.9% positive on eBay
Free UK delivery 2–4 business days
Spread the cost with 
18+, T&Cs apply
Wossner forged piston kit with a 54.50mm bore. Features enhanced strength, precise heat transfer, and optimised load distribution. The elliptical design provides a uniform bearing surface, reducing localised stresses during thermal expansion. Manufactured in Germany. Specifications include an actual piston size of 54.45mm, display capacity of 123 cm³, stroke of 54.00mm, clearance of 0.05mm, and compression height of 29.50mm. Includes piston kit part number 8055D050, lock CW15, pin WP032, and ring set RSB5450.
- SKU
- 56-W641_050.WO
- Brand
- Wossner
- Availability
- In Stock (1)
- General Product Group
- Engine
- General Product Type
- Pistons & Kits
- General Size
- 54.50mm
- Variant Id
- 257207
FULL DESCRIPTION
Wossner Forged Piston Kit for RM125 (1989-1999)
Enhance your Suzuki RM125's performance and durability with this Wossner forged piston kit. Engineered for precision and strength, this piston kit is designed to optimize your engine's power output and longevity.
Key Features
- Forged Construction: Offers superior strength, heat resistance, and reliability compared to cast pistons, ensuring durability under demanding conditions.
- Optimized Heat Transfer: Designed to efficiently transfer heat away from the combustion chamber to the cylinder walls, helping to maintain optimal operating temperatures and prevent premature wear.
- Elliptical Design: Features an elliptical piston skirt for uniform load distribution and reduced localized stress, especially during thermal expansion, minimizing the risk of piston collapse.
- High Precision Manufacturing: Meticulously crafted in Germany to exacting standards, guaranteeing a perfect fit and superior performance.
Specifications
- Bore Size: 54.50mm
- Actual Piston Size: 54.45mm
- Displacement Capacity: 123 cm³
- Stroke: 54.00mm
- Piston to Cylinder Clearance: 0.05mm
- Compression Height: 29.50mm
Included Components
- Piston
- Piston Pin (WP032)
- Piston Rings (RSB5450)
- Lock Clips (CW15)
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.