14 August. Friday 2026
Beta RR 4T 450 - 2009 Specifications and Reviews
General information | |
| Category | Enduro / offroad |
| Model | Beta RR 4T 450 |
| Year | 2009 |
Engine and Transmission Specifications | |
| Clutch | wet multi-disc clutch |
| Transmission typefinal drive | Chain |
| Gearbox | 6-speed |
| Cooling system | Liquid |
| Lubrication system | 2 oil pumps |
| Ignition | DC-CDI without trembler with variable ignition timing, Kokusan type. |
| Fuel system | Carburettor. Keihin FCR-MX 39 |
| Bore x stroke | 89.0 x 72.0 mm (3.5 x 2.8 inches) |
| Compression | 11.0:1 |
| Stroke | 4 |
| Engine type | Single cylinder |
| Capacity: | 448.00 ccm (27.34 cubic inches) |
| | |
Physical measures and capacities | |
| Wheelbase | 1,500 mm (59.1 inches) |
| Ground clearance | 320 mm (12.6 inches) |
| Overall width | 813 mm (32.0 inches) |
| Overall length | 2,270 mm (89.4 inches) |
| Overall height | 1,255 mm (49.4 inches) |
| Seat height | 940 mm (37.0 inches) If adjustable, lowest setting. |
| Dry weight | 117.5 kg (259.0 pounds) |
| | |
Beta RR 4T 450 dimensions and frame | |
| Rear brakes diameter | 240 mm (9.4 inches) |
| Rear brakes | Single disc. single-piston floating caliper |
| Front brakes diameter | 255 mm (10.0 inches) |
| Front brakes | Single disc. double-piston floating caliper |
| Rear tyre dimensions | 140/80-18 |
| Front tyre dimensions | 90/90-21 |
| Rear suspension | Monoshock with progressive compound lever |
| Front suspension | Hydraulic USD fork with 45 mm shaft |
| Frame type | Molybdenum steel with double cradle split above the exhaust port |
Speed and acceleration | |
| Modifications compared to previous model | Technical Modifications 2008 New design for headlamp support and front light assembly: more compact, with a more modern and aggressive shape. Anti-scratch polycarbonate lens. New digital instruments with smaller dimensions. New way of attaching the plastics at the rear end: a more practical system which improves accessibility and speeds up maintenance operations. Optimized and rationalized frame in the front area with new Domex 420 plates for a better rigidity and a loss of weight. New hydraulic ad |
| Reserve fuel capacity | 1.00 litres (0.26 gallons) |
| Fuel capacity | 8.50 litres (2.25 gallons) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
Performance Profile & Rider Fit
Best For
Track25%
City15%
Cornering70%
Daily Riding20%
Touring15%
Passenger5%
Rider Profile
| Best For | Best suited to intermediate and experienced off-road riders comfortable with a tall, light, powerful competition enduro bike. |
| Purpose | Built for serious enduro riding, trail competition, and technical off-road terrain rather than road use. |
| Rider Fit | The tall 940mm seat height and firm off-road stance demand good rider fitness, leg length, and confidence standing on the pegs. |
| Character | A featherweight, high-revving thumper with race-bred suspension and chassis that rewards an aggressive, physically engaged riding style. |
| Not Ideal For | Not a good fit for new riders, commuters, passengers, or anyone wanting a comfortable long-distance road machine. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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