| MODEL | BETA RR 250 ENDURO 2005 - 2006 |
| Year | 2005 - 2006 |
| Engine Type | Four stroke, single cylinder, DOHC, 4 valves |
| Displacement / Capacity | 250 cc / 15.3 cu in |
| Bore X Stroke | 75 x 56.5 mm |
| Compression Ratio | 12.0:1 |
| Cooling System | Air cooled |
| Max Power | — |
| Max Torque | — |
| Ignition | DC-CDI without trembler with variable ignition timing, Kokusan type |
| Induction | Keihin FCR-MX 37 carburetor |
| Start System | Electric and kick start |
| TRANSMISSION SPECS | |
| Lubrication | Forced with 2 oil pumps |
| Gear Box | 6 Speed |
| Clutch | Wet, multiplate |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Molybdenum steel with double cradle split above the exhaust port |
| Front Suspension | Marzocchi hydraulic USD fork, 45 mm |
| Rear Suspension | Monoshock with progressive compound lever |
| Front Brakes | Single 255 mm disc, 2 floating piston calipers |
| Rear Brakes | Single 240 mm disc, 1 floating piston caliper |
| DIMENSION SPECS | |
| Overall Length | 2270 mm / 89.4 in |
| Overall Width | 813 mm / 32.0 in |
| Overall Height | 1255 mm / 49.4 in |
| Seat Height | 940 mm / 37 in |
| Wheelbase | 1490 mm / 58.7 in |
| Ground Clearance | 320 mm / 12.6 in |
| Dry Weight | 117.5 kg / 259 lbs |
| 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 | — |
The 250 was the mid-size entry in Beta's first KTM-engined four-stroke RR enduro range. It uses a chromoly double-cradle frame, Marzocchi upside-down fork and a linkage-type rear shock, aimed at club-level enduro riding.
