| MODEL | BETA RR 400 ENDURO 2009 - 2010 |
| Year | 2009 - 2010 |
| Engine Type | Four stroke, single cylinder, DOHC, 4 valves |
| Displacement / Capacity | 398 cc / 24.3 cu in |
| Bore X Stroke | 95 x 56.2 mm |
| Compression Ratio | 12.4:1 |
| Cooling System | Liquid cooled |
| Max Power | — |
| Max Torque | — |
| Ignition | DC-CDI without trembler, variable ignition timing (Kokusan type) |
| Induction | Keihin FCR-MX 39 |
| Start System | Electric and kick |
| TRANSMISSION SPECS | |
| Lubrication | Forced, 2 oil pumps |
| Gear Box | 6 Speed |
| Clutch | Wet, multi-plate |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Molybdenum steel with double cradle split above the exhaust port |
| Front Suspension | Hydraulic USD fork, 45 mm, 290 mm / 11.4 in travel |
| Rear Suspension | Monoshock with progressive compound lever, 290 mm / 11.4 in travel |
| Front Brakes | Single 255 mm floating disc, 2 piston floating caliper |
| Rear Brakes | Single 240 mm disc, 1 piston floating caliper |
| DIMENSION SPECS | |
| Overall Length | 2180 mm / 85.8 in |
| Overall Width | 807 mm / 31.8 in |
| Overall Height | 1270 mm / 50.0 in |
| Seat Height | 940 mm / 37 in |
| Wheelbase | 1490 mm / 58.7 in |
| Ground Clearance | 320 mm / 12.6 in |
| Dry Weight | 114 kg / 251 lb |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 90/90-21 |
| Rear Tyre | 140/80-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 8.5 Litres / 2.2 US gal |
| Fuel Consumption | — |
| Top Speed | — |
A mid-size four-stroke enduro bike from Beta's 2009-2010 line-up, built around a 398 cc liquid-cooled DOHC single with electric and kick starting. It uses a molybdenum steel double-cradle frame and a conventional USD fork, with a tall 940 mm seat and long-travel suspension aimed at technical off-road riding.
