2026 Beta RR 390 RACE 4T EFI
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Introducing the MY26 Beta RR 390 RACE.
The RR 390 RACE represents the ideal mix of handling and power, with exceptional traction as its secret weapon. The light weight feel of the 350, but with more torque.As an Australia-exclusive change, all MY26 Beta RR RACE 4T models come fitted with the Beta Factory Muffler, providing a greater level of performance over that of the RR X-PRO 4T range. Note, Beta Factory Muffler is for closed course competition only.
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Description
Introducing the MY26 Beta RR 390 RACE.
The RR 390 RACE represents the ideal mix of handling and power, with exceptional traction as its secret weapon. The light weight feel of the 350, but with more torque.
As an Australia-exclusive change, all MY26 Beta RR RACE 4T models come fitted with the Beta Factory Muffler, providing a greater level of performance over that of the RR X-PRO 4T range. Note, Beta Factory Muffler is for closed course competition only.
Racing Components – Entire Range
Unchanged, however, is the tried and tested suspension package and the special components of Beta’s race-ready version:
48 mm Kayaba AOS closed cartridge fork: Anodised internal parts and the treatments administered to the materials minimise sliding friction, while adjustable compression and rebound damping let each rider find the perfect customisation of the setting.
Kayaba C46 RCU shock: The KYB shock can be seen as a gold standard in the racing scene in terms of its ability to absorb the roughness of the terrain, the level of traction transferred to the rear wheel and the consistency of performance even under particularly heavy use. Adjustable for preload, compression (high and low speed) as well as rebound ensures riders can dial the suspension to his or her liking.
Quick release front axle: immediately recognisable by the red anodised alloy release lever, this component is crucial for saving precious seconds in a race when you need to change a tyre.
Reinforced handguards: the handguards feature a two-component material mould, and not only give the bike a racing look but also make them especially hard-wearing in even the roughest off-road use.
Rear sprocket with anodised aluminium core and steel toothing by ZF SPROCKETS: top-class performance, lightness and strength – the benefit of light weight with steel teeth for long life.
Race seat: with non-slip cover and document holder pocket for unparalleled grip, comfort and practicality.
Anodised black gear lever and rear brake pedal.
Gearbox oil filler cap, engine oil filler cap and oil filter cap anodised red aluminium. Chain tensioner blocks in red machined alloy.
ADR and LAMS compliant in all Australian states and territories.
Components
Kayaba AOS 48mm closed cartridge forks ensure excellent operation under all usage conditions, being ultra reliable and easy to tune.
Kayaba (KYB) C46 Rear Shock: The KYB shock can be seen as a gold standard in the racing scene in terms of its ability to absorb the roughness of the terrain, the level of traction transferred to the vehicle and the consistency of performance even under particularly heavy use, and its hydraulic setting can be fully customised by adjusting the external compression (both high and low speed) and rebound settings.
Front Axle puller makes wheel changes quick and easy.
The engine map and traction control switches are now located with the bar pad, providing easier access.
A new lighter, and higher-performing Nissin front brake caliper has been fitted to the RACE range, helping to maintain braking power, progressiveness and modulation.
The RR RACE range sees a new thicker rear axle for MY2025, up to 22mm in diameter. providing greater stiffness and torsional resistance.
Redesigned CNC alloy footpegs with steel pins are fitted to the RACE range, offfering greater rider control.
Specifications
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
1275 mm
SEAT HEIGHT
950 mm
GROUND CLEARANCE
335 mm
FOOTREST HEIGHT
427 mm
WEIGHT (DRY)
107.5 kg (Front 52.7 kg / Rear 54.8 kg)
FUEL TANK
9.0L
RESERVE
2.3L
COOLING SYSTEM
1.3L
FRONT SUSPENSION
Hydraulic USD Frok with ø 48mm shaft
REAR SUSPENSION
Monoshock with progressive compound lever
SHOCK ABSORBER STROKE
130mm
FRONT WHEEL TRAVEL
300mm
REAR WHEEL TRAVEL
287mm
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
FRONT TYRE
90/90 - 21
REAR RIM
18 x 2.15 - 36 holes
REAR TYRE
140/80 -18
Engine
TYPE
Single cylinder 4 stroke liquid cooled
BORE
88 mm
STROKE
63.4 mm
DISCPLACEMENT
385.6 cc
COMPRESSION RATIO
12.48:1
VALVE TRAIN
DOHC finger follwer / 4 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
DRIVE
Chain
ENGINE OIL
SAE 10W/50 & SAE 10W/40
