Wossner 8062DC Piston Kit - 2001-2002 Kawasaki KX125 Standard Size C

Wossner 8062DC Standard Series Forged 2-Stroke Piston Kit - Standard Size C

Bring the "Green Streak" back to life with the Wossner 8062DC Piston Kit. Specifically engineered for the 2001-2002 Kawasaki KX125, this "Size C" forged kit is the expert choice for riders looking to refresh a cylinder that has logged significant hours. At Moto-House MX, we know that these high-revving 125cc cylinders naturally expand over time; this +0.02mm Size C kit provides the precise fitment needed to restore compression and eliminate power loss in worn bores.

Forged from high-performance aerospace aluminum alloy, the 8062DC is significantly more durable and heat-resilient than stock cast pistons. It features a single-ring configuration, a favorite among racers for reducing internal friction and allowing the engine to rev faster and more freely. To ensure maximum longevity, Wossner applies a permanent molybdenum disulphide skirt coating that reduces friction and prevents piston rock. Precision-machined for 54.02mm bores, this 53.97mm piston kit allows you to maintain peak performance on your KX125 without an immediate cylinder replate.

Top Features: Wossner 8062DC Piston Kit

• Standard Size C (53.97mm): Specifically designed for 54.02mm bores to compensate for cylinder wear and restore factory-correct clearances.
• Single Ring Design: Minimizes drag against the cylinder wall, promoting faster throttle response and higher top-end over-rev.
• Aerospace-Grade Forging: Engineered to withstand high-RPM stress and thermal expansion far better than original cast alternatives.
• Low-Friction Skirt Coating: Permanent skirt treatment minimizes internal drag, protects the cylinder wall, and ensures a quieter engine.
• Optimized Lightness: Expertly machined to reduce reciprocating mass, ensuring the KX125 retains its snappy, aggressive power delivery.
• Complete Racing Kit: Includes the forged Size C piston, high-performance single ring, wrist pin, and circlips.

Expert Pro-Tip: The Kawasaki KX125 requires tight mechanical tolerances for maximum horsepower. If your cylinder has seen several seasons of racing and measures slightly beyond factory Size A or B specs, moving to a Wossner Size C (53.97mm) is the professional way to bring your piston-to-wall clearance back to ideal levels. Always use a precision bore gauge to confirm your cylinder measures 54.02mm before installation. For a professional-grade rebuild, always install with a fresh top-end gasket kit and utilize premium 2-stroke oil to protect your investment.

Fitment List

Year Range	Vehicle Brand	Vehicle Model
2001-2002	Kawasaki	KX125

Frequently Asked Questions

Q: When should I choose Size C instead of Size A or B?
A: Size C (53.97mm) is used when the cylinder bore has worn larger (to 54.02mm) due to high use. This slightly larger piston restores the tight seal necessary for peak power and prevents "piston slap" in older cylinders.

Q: What is the benefit of the single ring setup?
A: A single ring reduces the friction surface area, allowing the engine to reach higher RPMs more quickly, which is ideal for the competitive 125cc racing class.

Q: Do forged pistons require more warm-up time?
A: Yes, forged pistons expand more than cast ones. Always allow your engine to reach operating temperature before riding at full throttle to ensure the piston has reached its intended operating size.

Recommended Pairings

• Complete Top End Gasket Set: Essential for maintaining a perfect seal and correct squish heights on your KX125.
• Motul 800 2T Factory Line: The ultimate high-performance lubricant to keep your new forged piston protected in racing conditions.

Restore your machine’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.