The VERTEX Cast Replica Piston Kit is a dependable OEM-style solution for refreshing an 85cc 2-stroke top end. Built in original OE form, it restores proper compression and performance while keeping fitment straightforward. A T-5 heat-treat hardening and tempering cycle improves durability, and the high-tech molybdenum disulphide skirt coating helps reduce friction for faster break-in and longer piston life.
If your engine is showing signs of wear—loss of power, poor compression, or increased noise—this piston kit helps bring your bike back to crisp, consistent running with a proven replacement design.
Key features:
✅ Cast Replica design – cast piston in original OE form
✅ T-5 heat treated for strength and durability
✅ Molybdenum disulphide skirt coating for faster break-in and extended service life
Benefits of use:
🔹 OEM-style replacement for reliable fit and everyday performance
🔹 Reduced friction during break-in thanks to moly skirt coating
🔹 Strong, lightweight gravity-cast alloy (18% silicone) for long-lasting operation
Technical specifications (highlights):
📌 Brand: VERTEX
📌 Vendor part number: 22803C
📌 Engine type: 2-Stroke
📌 Displacement: 85 cc
📌 Bore size: 48.50 mm
📌 Piston diameter: 48.46 mm
📌 Piston material: Cast aluminum alloy
📌 Skirt coating: Moly coated
📌 Ring material: Nitride-coated steel
📌 Compression ratio: Standard
📌 Units: Kit
Why choose this product/service?!
⭐ OEM-form Cast Replica piston kit from VERTEX for confident top-end servicing
⭐ Designed as an OEM replacement piston and ring solution for consistent results
⭐ Ideal for routine rebuilds where reliability, service life and easy fitment matter
