Power, Precision & Performance
PROX RACING PARTS
Discover top-tier racing components with PROX.
Built to endure, engineered to win.
| Size | Stock | Date |
|---|---|---|
| A - Ø43.44MM | Estimated shipping on | 2026-07-16 |
| B - Ø43.45MM | Estimated shipping on | 2026-07-16 |
| C - Ø43.46MM | Estimated shipping on | 2026-07-16 |
The PROX piston is designed for Yamaha YZ 65 (2018–2026) 2-stroke motocross engines, providing excellent thermal performance, wear resistance, and high reliability in demanding conditions.
Manufactured from high-strength aluminum alloy and built to strict OEM tolerances, this cast piston ensures a precise fit within the insert, promoting efficient combustion and superior heat dissipation. Supplied with rings, piston pin, and clips. Pin Bearing is not included for 2T applications, as recommended.
Stock Status Indicators:
🟢 Green – Item is in stock and available for immediate delivery.
🟡 Yellow – Item is in stock at the supplier. Please check the estimated shipping date.
🔴 Red – Item is out of stock.
Discover top-tier racing components with PROX.
Built to endure, engineered to win.
