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ENDURO - RR Race 250 2T
RR Race 250 2T
The engine of the new RR Race 250 2T has been completely redesigned. The new crankshaft, now shared with the 300, has a reduced stroke (69.9 mm compared to the previous 72 mm) and an increased bore of 67.4 mm. This is supported by a redesigned cylinder with optimised transfers and a dedicated piston. The new head, with a revised combustion chamber, uses a dual spark plug system: more combustion efficiency, full torque at all revs and stable carburetion even in the most difficult conditions. Thanks to better mass centralisation and a lower centre of gravity, the 250 is even more balanced and manoeuvrable, making every track pure fun.
| Displacement | Bore x stroke | Seat height | Dry weight |
|---|---|---|---|
| 249 cc | 66.4 x 69.9 mm | 950 mm | 103,5 kg |
ENGINE
REDESIGNED ENGINE
The engine of the new RR Race 250 2T has been completely redesigned. The new crankshaft, now shared with the 300, has a reduced stroke (69.9 mm compared to the previous 72 mm) and an increased bore of 67.4 mm. This is supported by a redesigned cylinder with optimised transfers and a dedicated piston. The new head, with a revised combustion chamber, uses a dual spark plug system: more combustion efficiency, full torque at all revs and stable carburetion even in the most difficult conditions. Thanks to better mass centralisation and a lower centre of gravity, the 250 is even more balanced and manoeuvrable, making every track pure fun.
Updated gearbox
The gearbox of the RR Race 250 2-stroke has been modified, with a significant lengthening of second gear. This modification generates greater fluidity in the transition between second and third gear, improving riding comfort and vehicle stability during and after gear changes. The result is a significant improvement for use in competition, where you can always find the perfect gear ratio to tackle any situation.
In Detail
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Double spark plugs
The double spark plugs improve carburetion, torque and power, reducing fuel waste. The system also ensures continuous operation even if one spark plug burns out.
Kayaba AOS fork
Kayaba AOS closed cartridge fork, ø 48 mm has anodised internal parts and specific treatments that minimise friction. Compression and rebound adjustments allow you to always find the ideal setting.
Ergal footpegs
Ergal racing footpegs with interchangeable steel pins. Narrower to facilitate foot movement, they offer superior grip for maximum control and feel with the bike.
Front wheel axle
Red anodised quick release front axle: essential for replacing the wheel in a matter of seconds and gaining precious seconds in the race.
Racing design
An aggressive and unmistakable look: the dedicated livery enhances the Race character with bold lines and exclusive colours, recalling the factory soul of Beta and making you stand out on the track.
Chain tensioners in red Ergal alloy
Anodised Ergal chain tensioner: lightweight, stable and reliable, it guarantees constant chain tension and greater reliability in enduro competitions.
Kayaba C46 RCU Mono
Fully customisable monoshock with external compression (high and low speed) and rebound adjustments. A benchmark for consistent performance and traction even in the most demanding conditions.
HANDLEBAR MAP SWITCH
The map switch button located on the handlebar allows you to select two engine maps: Full Power, which offers all the power and responsiveness of the engine, and Soft, which softens the power delivery, making it more manageable on slippery surfaces or when greater traction is needed.
Power valve
Beta’s 2-stroke engines are equipped with an external exhaust valve adjustment that allows the rider to customise the engine’s power delivery to suit their preferences by simply turning a screw.
Gallery Collection
Technical Specifications
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CHASSIS
▼| FRAME | Molybdenum steel with double cradle split above the exhaust port |
| WHEELBASE | 1482 mm |
| MAX LENGHT | 2175 mm |
| MAX WIDTH | 830 mm |
| max height | 1275 mm |
| seat height | 950 mm |
| ground clearance | 340 mm |
| footrest height | 427 mm |
| dry weight | 103,5 kg (front 50,8 kg; rear 52,7 kg) |
| fuel tank capacity | 9,5 l |
| reserve | 2,3 l |
| cooling system capacity | 1,3 l |
| front suspension | Hydraulic usd fork with Ø 48 mm shaft |
| rear suspension | Monoshock with progressive compound lever |
| SHOCK ABSORBER STROKE | 130 mm |
| FRONT WHEEL TRAVEL | 300 mm |
| REAR WHEEL TRAVEL | 287 mm |
| FRONT BRAKE | Wave disc Ø260 mm and double-piston floating caliper |
| REAR BRAKE | Wave disc Ø240 mm and single-piston floating caliper |
| FRONT RIM | 21 x 1,6 – 36 holes |
| rear rim | 18 x 2,15 – 36 holes |
| front tyre | 90/90 – 21 |
| rear tyre | 140/80 -18 |
ENGINE
▼| TYPE | Single cylinder, 2-stroke, liquid-cooled |
| BORE | 67,4 mm |
| STROKE | 69,9 mm |
| DISPLACEMENT | 249,4 cc |
| COMPRESSION RATIO | 13,8:1 |
| EXHAUST VALVE | BPV SYSTEM |
| STARTER | Electric starter |
| IGNITION | AC Kokusan – digital CDI |
| SPARK PLUG | NGK MR7BI8 (2x) |
| INDUCTION SYSTEM | Induction reed |
| LUBRICATION | Mixing |
| CARBURETTOR | Keihin PWK 36 |
| CLUTCH | Wet multi-disc with reverse opening |
| PRIMARY DRIVE | Z.27/72 |
| TRANSMISSION | 6 gears |
| FINAL TRANSMISSION | Chain |
| ENGINE OIL | SAE 10W/40 |
| CONSUMPTION l/100km | 2,5 |
| POLLUTION Co2 [g/km] | 60 |