| MODEL | BETA RS 450 2012 |
| Year | 2012 |
| Engine Type | Four-stroke, single cylinder, 4 valve |
| Displacement / Capacity | 449 cc / 27.4 cu in |
| Bore X Stroke | 95 x 63.4 mm |
| Compression Ratio | 11.95:1 |
| Cooling System | Liquid cooled |
| Max Power | — |
| Max Torque | — |
| Ignition | DC-CDI with variable ignition timing, Kokusan |
| Induction | Keihin FCR-MX 39 mm carburettor |
| Start System | Electric and kick |
| TRANSMISSION SPECS | |
| Lubrication | Twin oil pumps with cartridge oil filter; separate oil for engine and clutch |
| Gear Box | 6 speed |
| Clutch | Wet, multi-plate |
| Final Drive | O-ring chain, DID |
| CHASSIS SPECS | |
| Frame | Molybdenum steel, double cradle split above exhaust port, side air filter access |
| Front Suspension | Sachs 48 mm USD fork, adjustable compression and rebound, TFX technology, 290 mm / 11.4 in travel |
| Rear Suspension | Sachs shock, adjustable rebound and hi/low speed compression, 290 mm / 11.4 in travel |
| Front Brakes | Single 260 mm disc, 2 piston caliper |
| Rear Brakes | Single 240 mm disc, 1 piston caliper |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 934.7 mm / 36.8 in |
| Wheelbase | 1475 mm / 58.1 in |
| Ground Clearance | 320 mm / 12.6 in |
| Dry Weight | 108 kg / 240 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 90/90-21 |
| Rear Tyre | 140/80-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 7.9 Litres / 2.1 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The 2012 RS 450 is a 50-state street-legal dual-sport built on the twin-cam engine of Beta's RR enduro bikes. That year it received a reinforced cylinder head, a new clutch primary gear and stronger cam chain guides, along with a gusseted frame. Buyers could spec suspension and accessories through Beta's Build Your Own Beta programme.
