Piston Kit (Forged Big Bore)

Boost your engine performance with a durable VERTEX Pro-BB Forged Big Bore piston kit in original OE form, designed for big bore cylinders. This kit increases engine displacement to deliver stronger torque and higher peak horsepower—ideal when you want more pull and performance without compromising reliability.

Forged from tough 2618 aluminum and heat-treated with a T-5 hardening and tempering cycle, it’s built to handle demanding riding. A high-tech Molybdenum Disulphite (moly) skirt coating helps reduce friction for faster break-in time and increased piston life.

Key features:

• ✅ Pro-BB forged piston in original OE form for big bore cylinder
• ✅ 2618 forged aluminum for superior strength and durability
• ✅ Moly-coated piston skirt for quicker break-in and extended service life

Benefits of use:

• 🔹 More displacement for increased torque and peak horsepower
• 🔹 Reduced friction and improved longevity thanks to advanced skirt coating
• 🔹 Complete kit simplifies your rebuild with matched components

Technical specifications:

• 📌 Brand: VERTEX
• 📌 Vendor part number: 24405C
• 📌 Engine type: 4-Stroke
• 📌 Style: Forged Big Bore
• 📌 Bore size: 80.00 mm
• 📌 Piston diameter: 79.7 mm
• 📌 Displacement: 270 cc
• 📌 Compression ratio: 13.8:1
• 📌 Piston material: Forged aluminum alloy
• 📌 Skirt coating: Moly coated
• 📌 Ring material: Nitride-coated steel
• 📌 Included in kit: piston, rings, wrist pin, circlips

Why choose this piston kit?
⭐ Proven forged construction for demanding engines and riding conditions
⭐ Coatings and heat-treatment aimed at durability and consistent performance
⭐ A complete, rebuild-ready kit that helps you get back on the bike faster