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INTRODUCING MY2024 BETA RX 450
INTRODUCING THE BETA RX 450
Beta Motorcycles Australia is excited to announce the release of the MY2024 Beta RX 450.
In 2023, Beta's project to expand the horizons of RideAbility officially entered the motocross market in Europe, first with the RX 300 two-stroke and now with the king of motocross bikes, the RX 450 four-stroke!
It is officially the first four-stroke motocross bike built by the Italian manufacturer; for enthusiasts of all riding abilities, this translates into the first chance to ride the Beta MX bike that is based off of the race prototype that competed in the MXGP World Championship for the last three years.
A race-ready bike in all respects, specifically designed for motocross tracks, the design is completely new from the ground up: the frame, engine and all of the components are of the highest level, and developed with the project brief in mind: to bring new horizons of RideAbility to the MX world, the design is completely new from the ground up: the frame, engine and components are of the highest level, and developed with the project brief in mind: to bring new horizons of RideAbility to the MX world
What does RideAbility mean for Beta? It means to design a MX model that appeals to riders of all levels. Beta motorcycles are designed by a team of engineers based in Florence, Italy with a mission to provide all riders with a motocross bike that is easier to ride, while still providing the highest level of performance.
Debuting in the MXGP circuit just a few years ago, the RX 450 prototypes have provided the knowledge that can only come from top-level racing. These early one-off models provided the base layout and design for the production model and will see the RX 450 4T joining its younger brother the RX 300 2T on race tracks all over the world.
The technical design of the RX 450 is totally new and features:
Frame: designed from the ground up as an all-new frame that is specifically designed and dedicated for motocross use. The main spar of the frame is wider in design to withstand the stresses from repeated landings, making it much stiffer overall, yet supple enough for cornering. This translates into a precise chassis that provides a planted feeling in corners and a light feeling while in the air.
Rear sub-frame and filter box: The RX 450 has a new aluminium rear sub-frame which provides rigidity to the bike despite its light weight, providing the strength needed for the demanding needs of motocross. This new component is perfectly integrated with the new air filter box and is all-new for the RX 450. The new filter box and air intake, combined with the new 46 mm throttle body, provide a significantly different air flow than that required by an enduro bike, creating optimum air flow to keep up with the performance of the new engine. Access to the filter remains on the left side of the bike, and is extremely easy and intuitive, as well as being tool-free.
Plastic parts: while the front shrouds, recently redesigned for RR models as well, remain unchanged in their form, the rear features a new sleek and aggressive tail which, not being a structural component, fits into the new aluminium rear sub-frame and, as previously mentioned, allows access to the filter box via a convenient connection. The fuel tank is a smaller design and has a capacity of seven litres.
Fork and Shock: Kayaba, with 48 mm stanchions at the front and 50 mm piston at the rear. Both components are completely adjustable, and represent an ideal compromise between rideability and performance, thanks to continuous development on the track. The main difference in the suspension compared to the enduro models is the greater travel of the front fork, with specific calibration for motocross, while the shock is completely new. The shock is larger than the one the RR models are equipped with, which provides greater support on landings thanks to greater hydraulic damping, and more consistent performance with demanding use.
The blue anodised wheels are 21” at the front and 19” at the rear, with 90/100-21 and 110/90-19 Maxxis tyres, while the braking system is by Nissin with floating callipers and a 260mm disc on the front and 240mm at the rear. The front brake calliper is a smaller, more modern design. Also lighter than those previously used on Beta models, which provides noticeably more incisive performance when letting off the throttle at the limit, while on the rear the new brake master cylinder has a reservoir designed to leave more space for the exhaust layout.
And what about the bike's performance?
Engine: The engine, designed specifically for motocross use, has been developed in close partnership with the Official MXGP Team. The gearbox is five speed, with dedicated ratios, while the clutch (with diaphragm springs, and three adjustable positions) has been designed to withstand the stresses from the engine's high power output, while offering a light clutch pull at the lever. The weight and dimensions are particularly compact, as the components required for motocross use have been pared down to the minimum.
The crankshaft and countershaft are new, as are the cylinder, piston and timing system, allowing a compression ratio of 13.5:1 to be achieved.
The result is excellent engine performance along the entire delivery curve while featuring extended top-end at medium-high engine speeds, those most commonly used on the track. In keeping with the rideAbility goal which the whole design project was based on, the engine offers excellent torque that provides enjoyable and always controllable progressiveness in all situations.
Engine maps: in the wake of the recent introductions on the RR models, the RX 450 4T is also equipped with two specific engine maps (wet and dry) and four levels of Traction Control (on/dry, off/dry, on/wet, off/wet) to help manage the bike's significant power in all terrain conditions. The button to select the map and Traction Control is located on the handlebar pad.
Other notable features:
The handlebar controls have been reduced to a minimum, as has the electrical system. On the right-hand side is the start button, while the button to shut off the bike is on the left.
There are then some special components which enhance the bike's trim level as well:
Chain tensioners in red alloy
Blue anodised Excel rims
Red chain guide
Red anodised dual-material sprocket
Black alloy footpegs with steel pins
Rounding off the package are brand-new graphics, featuring typical Racing colours, but lending a unique flavour to the Beta's first four-stroke motocross bike.
The RX 450 will be delivered with four different throttle pulleys, to customise the throttle response.
Availability: January 2024
RRP: $14,495
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Availability Information
In-Stock
BOOM! Product is IN STOCK and ready to go! Orders placed before 12pm weekdays (QLD Time) will be dispatched same day.
You can decide at checkout between standard or express shipping.
For further information see our shipping policy.
Backorder
DAMN... Product is currently NIL STOCK and therefore will need to be backordered. However don't worry as our parts team puts in the hard yards to get stock here FAST!
In the case of Genuine Beta spare parts we air freight weekly via DHL so turnaround time from order date is typically within 2-3 weeks.
Sometimes quicker if we already have stock in transit.
Shipping is only paid once so any backordered items are sent on arrival without additional charges.
In the case of aftermarket items wait times can be longer depending on the supplier. If you would like more clarity it's best to reach out via our webchat or you can email our parts interpreters.