2027 Beta RX 450

Development of the RX 450 model focuses primarily on the electronics and engine power delivery. Electronics: the following features are introduced, just like on its smaller sibling, the 250 4T:
• Quick Shift
• Launch Control

Traction Control has been further refined for more precise and progressive intervention. The two maps have been updated to make the most of the engine, and all controls are managed via a new integrated control panel. Throttle body: the new throttle body features a new tapered design, for a higher volume of airflow and less turbulence.
The result is:
• more responsive throttle response
• smoother and more adjustable power delivery

Silencer: for both engine sizes, the silencer features updates to the internal components to optimise their resistance to the stresses typical of intensive motocross use.
Dunlop tyres: as on the 4-stroke models, the 2-stroke models also feature new-generation Dunlop tyres, which are extremely efficient in terms of traction and performance but lighter than their predecessors, greatly benefiting the bike’s handling.
Handlebar protection: to provide greater protection for the rider and harmonise the design of the RX family with the 4-stroke models, the handlebar protection has been redesigned. The button for selecting the engine map is still located inside the pad as well as the newly added Launch Control and Quick Shift functions.
The following features and updates have been introduced to all four RX models:
Chain guide: reinforced for resistance to mud, sand and impacts, improving the precision and durability of the drivetrain.
Front sprocket guard: This new guard has been redesigned to ensure superior protection against impacts, debris and external elements during use, as well as greater safety for the rider (in compliance with even the most stringent competition regulations).
Grips: The new RX models feature grips made from a softer compound, developed to improve comfort and control during intensive track use. Embossed with the Beta logo.
Graphics and colours: the new graphics introduce an eye-catching red and black livery, designed to convey an aggressive and contemporary image, to accompany the launch of the eagerly awaited 250cc 4-stroke model.
In conclusion, it is worth highlighting the distinctive features of the range, which give the RX models their unique character:
Frame: the successful frame geometries of the previous models (for the 250-350 2-stroke and 450 4-stroke models) are retained, already widely appreciated for the excellent balance between stability, manoeuvrability and the sense of security conveyed to the rider. A design approach that has proven its effectiveness both on the fastest sections and on technical stretches, always ensuring predictable and precise handling, allowing the bike to offer a high level of confidence right from the first few laps; we call it RideAbility.
Aluminium subframe and dedicated air filter: the aluminium provides the right degree of rigidity to the structure, whilst maintaining lightness and the ability to absorb stresses. Access to the filter remains on the left side of the bike and is extremely easy and intuitive, requiring no tools whatsoever.
Kayaba (KYB) suspension: the 48 mm closed-cartridge front fork and 50 mm rear shock have been retained, featuring dedicated settings developed specifically for the various models in the range. The updated valving, which differs on each model, has focused on maintaining high sensitivity in the initial part of the stroke, favouring manoeuvrability and the ability to absorb bumps and chop, without compromising support during the most demanding conditions, such as landings and high-speed sections. The result is a set-up capable of instilling immediate confidence, offering stability and precision as the pace increases, thereby allowing riders of all levels to exploit the bike’s potential.
Nissin braking system: featuring floating brake callipers and Galfer brake disks measuring 260mm at the front and 240mm at the rear, for powerful and controllable braking.

Handlebar with silent block supports: raised by 5 mm to improve ergonomics and comfort.
Lastly, each RX model comes with a special stand that also doubles as a tie-down restraint to prevent damage to the front fork springs. The 4-stroke models also feature four different throttle control pulleys to fine-tune the throttle response.