Wossner 8103DC Piston Kit - 2002-2023 Suzuki RM85 2-Stroke Size C

Wossner 8103DC Premium Forged 2-Stroke Piston Kit - Size C

Ensure your mini-racer stays at the head of the pack with the Wossner 8103DC Piston Kit. Specifically engineered for 2002-2023 Suzuki RM85 cylinders that require a Size C fitment, this kit is designed to restore Factory Quality power and high-RPM reliability. At Moto-House MX, we specialize in high-performance engine components that provide the precision required for the demanding environment of youth motocross racing.

Forged from aerospace-grade aluminum alloy, this piston offers a superior strength-to-weight ratio compared to standard cast alternatives, ensuring it can handle the intense heat and mechanical stress of a high-revving 85cc engine. The permanent skirt coating is a vital feature, significantly reducing friction and piston rock for a quieter engine and smoother power delivery. This Size C piston (47.97mm) is designed for cylinders with a 48.02mm bore, providing the exact clearances needed for optimal compression in cylinders that have seen extended use.

Top Features: Wossner 8103DC Piston Kit

• Standard Size C (47.97mm): Precision-engineered for 48.02mm bores to maintain perfect tolerances in seasoned cylinders.
• Aerospace Forged Alloy: Premium aluminum construction for maximum durability and thermal stability during long motos.
• Low-Friction Skirt Coating: Permanent coating reduces internal wear and mechanical noise for a more efficient engine.
• Single-Ring Racing Design: Optimized for reduced drag and maximum high-RPM efficiency in the 85cc class.
• Complete Assembly: Kit includes the forged piston, high-quality ring, wrist pin, and clips.

Expert Pro-Tip: The Suzuki RM85 is a high-performance machine that rewards precise maintenance. Size C is the ideal choice for a cylinder that has been through several racing seasons, as it compensates for the natural microscopic wear of the cylinder plating. To maximize performance, always inspect your exhaust valves and use a new top-end gasket kit for a perfect seal.

Fitment List

Year Range	Vehicle Brand	Vehicle Model & Size
2002-2023	Suzuki	RM85 / RM85L

Frequently Asked Questions

Q: What is the difference between Size A, B, and C?
A: Size C (47.97mm) is slightly larger than Size A or B. This allows you to maintain the factory-specified piston-to-wall clearance as the cylinder wall experiences natural wear over time, preventing piston slap and maintaining compression.

Q: Does this kit include the wrist pin bearing?
A: No, the kit includes the piston, ring, wrist pin, and clips. We highly recommend purchasing a new small-end bearing separately whenever you perform a top-end refresh on an 85cc engine.

Q: Will this fit my RM85L (Big Wheel)?
A: Yes, the RM85 and RM85L utilize the same engine platform and cylinder dimensions.

Recommended Pairings

• Top End Gasket Kit: Essential for a professional, leak-free engine rebuild.
• Motorex Cross Power 2T Oil: The ultimate synthetic lubrication choice for high-performance Suzuki 2-strokes.

Restore your Suzuki’s power and precision today. Buy now at Moto-House MX!

Moto-House MX – Choice of Champions – is located in Clermont/Montverde, FL. The Best Motocross/UTV & ATV Shop in Central Florida. Stop by our local store in Montverde, FL or enjoy lightning-fast shipping across the USA.