Beta 450 RX
- 4 stroke
- 104.5 kg
- Fuel capacity 7 liters
- Seat height 945 millimeters
Beta's first four-stroke motocross bike, the 450 RX, is engineered for performance with a focus on rideability, making it a strong contender in the MXGP class.
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Specifications
| Brand | Beta |
| Power (HP) | Not published by Beta |
| Torque (NM) | Not published by Beta |
| Price | $10,990 (US list price, plus $595 destination) |
| Engine Stroke | 4 |
| Displacement (cc) | 449.3 |
| Cylinders | 1 |
| Weight (dry) | 104.5 kg |
| Fuel Capacity (l) | 7 |
| Seat Height (mm) | 945 |
| Gears | 5 |
| Start Type | Electric starter |
| Suspension Front (mm) | Hydraulic USD closed-cartridge fork with ø 48 mm shaft |
| Suspension Rear (mm) | Monoshock with progressive compound lever |
| Frame | Molybdenum steel with double cradle |
| Brakes Front (mm) | Wave disc ø260 mm, double-piston floating caliper |
| Brakes Rear (mm) | Wave disc ø240 mm, single-piston floating caliper |
| Clutch | Wet multi-disc clutch |
| Bike URL | https://www.betamotor.com/en/bikes/rx-4t-450/ |
Sources:
- power, torque, weight, seat height, tank, all other specs: RX 450 F MY27, Beta Motor, checked 2026-10-14. Beta publishes no power or torque figure.
- price: 2027 450 RX, Beta USA, checked 2026-10-14.
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