Piston Kit Forged Series for 4-Stroke

Upgrade or refresh your 4-stroke top end with the WISECO Forged Series Piston Kit—built for riders who want maximum strength, consistent performance and dependable durability. This forged piston is designed for specific engine applications and manufactured to tight tolerances, delivering an excellent balance of lightweight response and long-term reliability.

Whether you’re rebuilding after hours of riding or looking to restore crisp throttle response, a complete piston kit helps you get everything matched and ready for installation—reducing guesswork and saving time during a top-end service.

Key features:

• ✅ Forged 2618 aluminum construction for high strength under heat and load
• ✅ ArmorGlide® skirt coating to reduce friction and help minimize wear
• ✅ Application-specific forging optimized for strength-to-weight ratio

Benefits of use:

• 🔹 Stronger than cast alternatives for demanding riding and higher-stress conditions
• 🔹 Smoother, more efficient operation thanks to reduced skirt friction
• 🔹 Convenient complete kit—key components included for a proper rebuild

Technical specifications:

• 📌 Engine type: 4-Stroke
• 📌 Displacement: 250 cc
• 📌 Bore size: 77.00 mm (Standard)
• 📌 Piston diameter: 76.96 mm
• 📌 Compression ratio: 13.8:1
• 📌 Skirt coating: ArmorGlide®

Kit contents:

• • 1x Piston
• • 1x Ring Set (#7700YC)
• • 1x Wrist Pin (#S677)
• • 1x Circlip Set (#W6883)

Why choose this kit?

⭐ Built by WISECO and designed for performance-focused 4-stroke engines
⭐ Forged construction and premium coating for durability and confidence under load
⭐ Includes the essential components needed for an efficient top-end rebuild