RR X-PRO
4T 390 MY26

My26
My27

The RR X-PRO 390 4T is the perfect blend between handling and power. It combines the agility of smaller motorcycles with the torque and power of its larger counterparts, taking you literally anywhere.

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385,6 cc

Displacement

88 x 63,4 mm

Bore x stroke

950 mm

Seat height

107 kg

Dry weight

MAIN FEATURES

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.

SUSPENSION

XPRO
Mono

In keeping with the character of the X-PRO, the suspension has been designed to provide optimum rideability, with predictable and comfortable handling at all times.

The new monoshock features a completely redesigned compression unit, with more linear oil flow and more effective adjusters. The hard-anodised aluminium body ensures smoothness, durability and lightness.

The result is a more precise and progressive response, capable of adapting to the needs of every rider: from the growing amateur to the most technical Hard Enduro professional.

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.

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.

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manual brochure

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

NNGK 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

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