Wiseco Forged Piston Kit 4798M03900 — Honda CRF50F / XR50R / Z50R 1988-2013

Product Description

The Wiseco 4798M03900 Forged Piston Kit is engineered specifically to bring reliable performance and enhanced strength to your Honda 50cc mini bike. Built from 4032 aluminum alloy, this piston features dedicated forgings that provide an optimized strength-to-weight ratio, perfect for everything from backyard pit bike riding to rigorous off-road use.

This kit is manufactured to the industry's tightest tolerances, ensuring a seamless fit and maximum durability under high-stress conditions. The complete kit includes the forged piston, high-performance ring set, wrist pin, and circlips, giving you everything necessary for a precision top-end refresh that will keep your Honda CRF50F, XR50R, or Z50R running at its best.

Top Features: Wiseco Forged Piston Kit

• Dedicated forgings designed specifically for the Honda 50cc platform
• Manufactured from high-quality 4032 aluminum alloy for superior strength
• Optimized strength-to-weight ratio for responsive throttle and durability
• Maintains a reliable 11.0:1 compression ratio
• Comprehensive kit: includes piston, ring set, wrist pin, and circlips

Please review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.

Fitment List

Frequently Asked Questions

Q: Is this piston intended for racing or trail riding?
A: This forged piston is highly versatile and ideal for multi-purpose riding, whether you are casual pit-biking or aggressive trail riding. The forged construction provides a significant safety margin over stock cast pistons.

Q: Do I need to re-jet my carburetor after installing this?
A: While this piston is designed for a standard bore, any time you refresh an engine, it is good practice to check your plug color and confirm your jetting is optimal for your current intake and exhaust setup.

Expert Pro-Tip: Mini-bike cylinders often develop a slight "glaze" in the bore over time. Even if the cylinder measures within spec, always take a moment to lightly hone the cylinder wall to cross-hatch it. This cross-hatching is what holds the oil film against the rings, ensuring your new Wiseco piston seats properly and doesn't smoke on startup.

Recommended Pairings:
o Honda CRF50F/XR50R Performance Parts & Upgrades
o Pit Bike Performance Headquarters
o Premium Motorcycle Engine Oils

At Moto-House MX, we carry the best brands in motocross and off-road performance. Our team has over 40 years of experience helping riders get more out of their bikes. Every order ships fast from our Central Florida location.

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