Boost your 4-stroke engine’s performance with the VERTEX Pro HC Forged High Compression Piston Kit—engineered to deliver improved power and torque across the entire rpm range. Thanks to a high-compression design and premium forged construction, it’s an ideal choice for riders who want a sharper, stronger-running engine during hard motocross or enduro use.
This piston is forged from 2618 aluminum for superior strength and durability compared to cast alternatives, and it is T-5 heat treated for added stability under high load and temperature. A molybdenum disulphite skirt coating reduces friction to help shorten break-in time and increase piston life—great for demanding riding and frequent heat cycles.
Key features:
✅ Pro HC high-compression design developed with Vertex technology
✅ T-5 heat-treatment cycle for strength and reliability
✅ Moly-coated piston skirt for faster break-in and longer wear life
Benefits of use:
🔹 More usable power: higher compression can improve torque and power throughout the rev range
🔹 Long-lasting performance: forged 2618 alloy withstands heavy use better than many standard pistons
🔹 Convenient rebuild solution: supplied as a complete kit with the key install parts included
Technical specifications:
📌 Brand: VERTEX
📌 Vendor part number: 24381A
📌 Engine type: 4-Stroke
📌 Displacement: 250 cc
📌 Bore size: 77.00 mm
📌 Piston diameter: 76.95 mm
📌 Compression ratio: 14.7:1
📌 Piston material: Forged aluminum alloy (2618)
📌 Skirt coating: Moly coated
📌 Ring material: Nitride coated steel
📌 Kit includes: piston, rings, wrist pin, circlips
Why choose this product?
⭐ Pro-level materials and coatings designed for high-stress riding conditions
⭐ Performance-focused upgrade with high compression for stronger engine character
⭐ Ready-to-install kit format helps simplify top-end service and rebuild planning
