MY25 RR390 RACE 4T

$17,770.00

Introducing the MY2024 Beta RR 390 Racing.

With an ideal handling to power ratio, the winning feature in the RR 390 RACE lies in its outstanding traction and big bore torque feel.

The 2025 RR Race bikes represent the race-ready versions of Beta’s newly-introduced X-Pro models, with a series of modifications to the engine, suspension, and frame, making them ideal for providing their best on the track. Designed for both low and high-speed courses, the Race models will provide riders with the confidence and Rideability that only Beta can deliver.

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Description

MY25 RR390 RACE 4T:

New features for all models 
New CNC alloy footpegs
: redesigned to ensure maximum control at all times and no loss of contact with the bike, the RR Race models are fitted with new machined alloy racing footpegs with steel pins which are interchangeable; these are narrower than in the past to facilitate movement of feet, but better in terms of grip.

Front brake calliper: a lighter and higher-performance Nissin calliper compared to the previous component appears on the new Race models; this helps emphasise the bike’s handling, while maintaining braking power, progressiveness and modulation.

Larger rear wheel axle: the rear wheel axle size has been increased 2mm in diameter, for a total of ø 22mm. This new axle provides greater stiffness and torsional resistance, resulting in a bike that is always precise and well steered, even in the most violent accelerations. The rear swingarm has also been updated to accommodate the new axle.

Mapping switch on the handlebars: the mapping switch button is no longer located in the traditional position behind the steering tube: it is now on the handlebars, inside the bar pad, maintaining consistency with the X-PRO models. In the case of four-stroke models both the mapping switch and the Traction Control button are in this new location which is easier to access.

Bodywork: the new superstructures recently introduced on the X-PRO have been incorporated in the RR Race with an aggressive and flashy new appearance, generating a complete restyling of the bike. The headlight mask, tank panels, sides and rear guard have been redesigned by Beta. The mask has a tapered design, while the rear guard and the tank panels are sleek and well connected, maintaining simple, tool-free access to the air filter, while retaining the push button seat removal.

On all two-stroke models, the oil injection is not included on Race models to reduce the overall weight of the bike however it can be added as an option. (available in the Factory Parts catalogue)

Engine – RR Race Four-Stroke 
All four-stroke Race models receive new crankcases, derived from the engine used on the RX 450. The main benefit deriving from the use of this new component lies in the smaller size and lighter weight compared to the previous model.

Aesthetically sleeker, the new four-stroke Race MY 2025 engine now leaves more space for the exhaust passage as well, facilitating installation, removal or replacement operations.

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 aluminiumChain tensioner blocks in red machined alloy. 

ADR and LAMS compliant in all Australian states and territories.

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

Brand

Beta Motorcycles