14 August. Friday 2026
Beta RR 4T 400 - 2008 Specifications and Reviews
The 2008 Beta RR 4T 400 is a lightweight enduro motorcycle designed for trail riders seeking nimble handling and off-road versatility. Its 398cc liquid-cooled four-stroke engine delivers manageable power with excellent fuel efficiency, while the compact 117.5kg chassis excels on technical terrain. Best known for its reliability and accessibility to intermediate riders tackling mixed off-road conditions.
General information | |
| Category | Enduro / offroad |
| Year | 2008 |
| Model | Beta RR 4T 400 |
| | |
Engine and Transmission Specifications | |
| Clutch | wet multi-disc clutch |
| 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 64.0 mm (3.5 x 2.5 inches) |
| Compression | 11.0:1 |
| Stroke | 4 |
| Engine type | Single cylinder |
| Capacity: | 398.00 ccm (24.29 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 400 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%
City20%
Cornering70%
Daily Riding15%
Touring15%
Passenger5%
Rider Profile
| Best For | This bike suits intermediate to experienced off-road riders who are comfortable with a tall, aggressive enduro machine. |
| Purpose | Built as a purebred competition enduro machine, it excels at tackling technical trails, tight woods sections, and demanding off-road terrain. |
| Rider Fit | The tall 940mm seat height, minimal weight, and firm long-travel suspension demand good rider fitness, leg length, and standing-riding stamina. |
| Character | It has the light, flickable, high-revving personality of a race-focused single-cylinder enduro bike that rewards active, aggressive riding. |
| Not Ideal For | It is not a good choice for riders wanting a comfortable commuter, a passenger-friendly bike, or long-distance paved touring. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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