Cylinder

The AIRSAL cylinder is a high-quality replacement component designed for 250cc 4-stroke engines, built to restore strong, consistent performance when your top end needs attention. Its aluminum construction helps manage heat efficiently, while the Scanimet® (nickel + silicon carbide) bore coating is engineered to reduce wear and improve durability under demanding riding conditions.

If you’re dealing with cylinder wear, scoring, or a tired top end, replacing the cylinder can help bring back proper compression and smooth running—making your engine feel sharper and more reliable ride after ride.

Key features:

• ✅ Scanimet® bore coating (Nickel-Silicon Carbide) for excellent wear resistance
• ✅ 77.00 mm bore sizing for correct fitment and rebuild accuracy
• ✅ Aluminum construction for effective heat dissipation and reduced weight

Benefits of use:

• 🔹 Helps extend top-end service life thanks to a hard, wear-resistant coated bore
• 🔹 Supports consistent engine performance by restoring proper cylinder condition
• 🔹 Great choice for rebuilds where durability and heat control matter

Technical specifications:

• 📌 Brand: AIRSAL
• 📌 Displacement: 250 cc
• 📌 Engine type: 4-Stroke
• 📌 Bore size: 77.00 mm
• 📌 Material/finish: Natural aluminum
• 📌 Cylinder bore coating: Nickel-Silicon Carbide (Scanimet®)
• 📌 Vendor part number: 03420477
• 📌 Package contents: Only cylinder

Why choose this product?

• ⭐ Proven AIRSAL manufacturing and performance-focused materials
• ⭐ Durable coated bore designed for demanding engine use
• ⭐ A straightforward solution for a dependable top-end refresh