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ENDURO - RR X-PRO 390 4T
RR X-PRO 390 4T
Redesigned to offer superior performance, the new fork reduces weight by approximately 250 g and introduces separate function management: the right leg controls elasticity, while the left leg controls hydraulics. Both of which have been refined to ensure more precise and consistent adjustments, allowing the rider to always find the ideal setting. The redesigned spring guide improves oil flow and reduces internal pressure at high speeds, avoiding unwanted friction and ensuring a consistently linear and predictable response. The single-chamber design allows the fork to react more quickly to obstacles, making riding noticeably smoother and more immediate. The result is a suspension capable of adapting to the needs of both amateur riders, who seek comfort and confidence, and pros who tackle the most extreme terrain of Hard Enduro.
| Displacement | Bore x stroke | Seat height | Dry weight |
|---|---|---|---|
| 385,6 cc | 88 x 63,4 mm | 950 mm | 107 kg |
SUSPENSION
SHC fork
Redesigned to offer superior performance, the new fork reduces weight by approximately 250 g and introduces separate function management: the right leg controls elasticity, while the left leg controls hydraulics. Both of which have been refined to ensure more precise and consistent adjustments, allowing the rider to always find the ideal setting. The redesigned spring guide improves oil flow and reduces internal pressure at high speeds, avoiding unwanted friction and ensuring a consistently linear and predictable response. The single-chamber design allows the fork to react more quickly to obstacles, making riding noticeably smoother and more immediate. The result is a suspension capable of adapting to the needs of both amateur riders, who seek comfort and confidence, and pros who tackle the most extreme terrain of Hard Enduro.
Traction that makes the difference
The 390 cc 4-stroke engine has been designed to deliver smooth and powerful performance. The great strength of the 390 is its ability to transfer power to the ground with continuity, making every ride safe and smooth. Whether on a technical uphill section or on muddy terrain, traction is always its winning weapon.
In Detail
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Engine maps
The new 4-stroke engine maps improve power delivery in terms of linearity and usability at all revs. Whatever the displacement, Beta engineers improved their linearity and usability, to better manage the power available, at any speed.
Battery
All 4-stroke models are equipped with a new, lighter and more-performing battery to ensure reliable starting under any usage conditions.
FRONT RECOVERY STRAP
To emphasise the Extreme character of the RR X-PRO, a new front recovery strap has been introduced, customised with Beta embroidery, which is very useful for getting out of the most difficult situations.
COOLANT EXPANSION TANK
The coolant expansion tank, approximately 200cc, allows you to recover water that could be expelled from the radiator as temperatures rise, particularly when riding slowly and technically, or during extreme enduro passages.
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. The same button is also used to select the level of Traction Control intervention.
NISSIN BRAKE PUMP
The new X-PRO My26 models are equipped with a new front brake caliper, coming from motocross, which is smaller, lighter and more efficient than the previous one, ensuring significantly more effective performance when braking at the limit, while maintaining the typical modularity of the systems chosen by Beta’s engineers.
Silent block
The Silent Block reduces vibrations transmitted to the rider, making the grip more comfortable and less tiring.
DESIGN
The model’s distinctive personality is also reflected in its new full red livery with contrasting black graphics, which is both modern and sporty.
Gallery Collection
Technical Specifications
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CHASSIS
▼| Frame | Molybdenum steel with double cradle split above the exhaust port |
| Wheelbase | 1480 mm |
| Max length | 2180 mm |
| Max width | 830 mm |
| Max height | 1270 mm |
| Seat height | 930 mm |
| Ground clearance | 315 mm |
| Footrest height | 407 mm |
| Dry weight | 107,5 kg (front 52,7 kg; rear 54,8 kg) |
| Fuel tank capacity | 9,0 l |
| Reserve | 2,3 l |
| Cooling system capacity | 1,4 l |
| Front suspension | Hydraulic USD fork with ø 48 mm shaft |
| Rear suspension | Monoshock with progressive compound lever |
| Shock absorber stroke | 132 mm |
| Front wheel travel | 295 mm |
| Rear wheel travel | 290 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, 4-stroke, liquid-cooled |
| Bore | 88 mm |
| Stroke | 63,4 mm |
| Displacement | 385,6 cc |
| Compression ratio | 12,48:1 |
| Valve train | DOHC finger follower / 4 titanium valve |
| Starter | Electric starter |
| ACG | Kokusan |
| Spark plug | NGK LKAR 8A-9 |
| Lubrication | 2 oil pumps |
| Fuel system | Elldor dual electronic injection |
| Throttle body | Ø 42 mm – Synerject |
| Clutch | Wet multi-disc clutch |
| Primary drive | Z.28/76 |
| Transmission | 6 gears |
| Final transmission | Chain |
| Engine oil | SAE 10W/50 0,8 l. + SAE 10W/40 0,8 l. |
| Consumption l/100 km | 3,3 |