Beta RX 450 (2026) £9,295 Northamptonshire, East Midlands Make: Beta Model: RX 450 Engine: 450cc Style: Off-Road Mileage: 0 miles Condition: New Colour: Red Seller: John Lee Motorcycles Beta RX 450 (2026), 450cc. 2026 Beta RX450 4T motocross bike, in stock and ready to ride today RX 450 4Str is the fans’ chance to ride a Made-in-Beta MX closely resembling the race bike that’s been running in the MXGP World Championship for five years now and in the American AMA Supercross series since 2024. The Model Year 2026 RX 450 has been updated with a massive performance step, making the power delivery close to that of the factory bikes, while keeping the brand’s signature easeof control intact. RX 450 4Str E... View bike details...