02 July. Thursday 2026
Rx 4T 450 - 2026 Specifications and Reviews
The Beta RX 4T 450 is a competitive 449cc four-stroke motocross bike engineered for serious off-road racers and experienced riders. Its titanium-valved engine delivers aggressive power through a 13.5:1 compression ratio and electronic fuel injection, while the liquid-cooled DOHC design ensures reliability in intense racing conditions. Known for precise handling and race-ready performance, it excels in cross and motocross competition.
2026
General information | |
| Color Options | Blue/red/white |
| Category | Cross / motocross |
| Model | Beta RX 4T 450 |
| | |
Engine and Transmission Specifications | |
| Starting | Electric |
| Clutch | Wet multi-disc |
| Final Drive | Chain (final drive) |
| Gearbox | 5-speed |
| Cooling System | Liquid |
| Ignition | Kokusan. |
| Fuel Control | Double Overhead Cams/Twin Cam (DOHC) |
| Induction | Injection. Elldor electronic injection, 46mm |
| Valves Per Cylinder | 4 |
| Bore x Stroke | 97.0 x 60.8 mm (3.8 x 2.4 inches) |
| Compression Ratio | 13.5:1 |
| Engine Details | Titanium valves |
| Capacity | 449.3 ccm (27.42 cubic inches) |
Physical measures and capacities | |
| Fuel Capacity | 7.00 litres (1.85 US gallons) |
| Wheelbase | 1485 mm (58.5 inches) |
| Ground Clearance | 330 mm (13.0 inches) |
| Overall Width | 825 mm (32.5 inches) |
| Overall Length | 2170 mm (85.4 inches) |
| Overall Height | 1270 mm (50.0 inches) |
| Seat Height | 945 mm (37.2 inches) If adjustable, lowest setting. |
| Dry Weight | 104.5 kg (230.4 pounds) |
Rx 4T 450 dimensions and frame | |
| Wheels | Wire spoked with blue rims. |
| Rear Brakes | Single disc. Single-piston floating caliper. Wave disc. |
| Brake Disc Diameter | 240 mm (9.4 inches) |
| Front Brakes | Single disc. Double-piston floating caliper. Wave disc. |
| Rear Tyre | 110/90-19 |
| Front Tyre | 80/100-21 |
| Rear Wheel Travel | 305 mm (12.0 inches) |
| Rear Suspension | Monoshock with progressive compound lever |
| Front Wheel Travel | 305 mm (12.0 inches) |
| Front Suspension | Hydraulic USD close cartridge fork |
| Frame | Molybdenum steel with double cradle split above the exhaust port |
Other specs | |
| Related bikes | List related bikes for comparison of specs. |
| Ask questions | Join the 25 Beta RX 4T 450 discussion group or the general Beta discussion group. |
| Maintenance | Find parts, fluids. filters, maintenance tools and service manuals at Amazon.com. |
| Insurance costs | Compare US insurance quotes from the nation's top providers. |
| Fork tube size | 48 mm (1.9 inches) |
| Spark plugs | NGK LKAR 8A-9 |
| Coolant | 1.00 litres (0.26 US gallons) |
| Engine oil | SAE 10W/45 |
| Update specs | Report missing specs or required updates. |
| Lubrication system | 2 oil pumps |
| Engine type | Single cylinder, four-stroke |
| Year | 2025 |
Rider Reviews
Add a Comment
Related Motorcycle Specifications
Please Submit Recommendations
More Beta Motorcycles
- Motorcycles in database: 36900
- Technical specifications: 1251993
- Images of motorcycles: 63755
- Videos: 339
- Manufacturers: 502
Please Login or Register if you would like to leave a comment.