2025 Beta RX 450 Base

2025 Beta RX 450 Base

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Exterior Colors:

  • Year 2025
  • Make Beta
  • Model RX 450
2025 Beta RX 450 Base

2025 Beta RX 450 Base

2025 Beta RX 450

A few months ago, Beta's project to expand the boundaries of RideAbility has officially landed in the new Motocross dimension, and the Tuscan company is already set to enhance its models day after day, and to keep its bikes simply at the top. RX 450 was officially the first 4-Stroke Cross bike built by the manufacturer from Rignano sull'Arno, and, for fans, it was also the chance to ride a Made in Beta MX derived from the race prototype, which has now been racing for four years in the MXGP World Championship. While RX 300 2T is a Cross-Country bike launched as an exclusive for the US market in 2021, which started off as an Enduro-derived project, and was brought closer to the world of motocross with a series of specific adaptations. The success of this project and the ever-growing experience in the MXGP World Championship with the 450 4T, have led the Tuscan brand to open the throttle, and configure the RX 300 as a fully-fledged motocross bike, with only a few things in common with the Enduro models. With the Model year 2025, RX 300 underwent a series of important interventions to the engine and to the suspension and frame, which totally break away from the Enduro world and, like RX 450, configure a standalone project, completely dedicated to Motocross. RX 450 also received exciting new updates that sharpen the model's weapons, ready to do battle on MX tracks around the world. Within so many changes for the new RXs, the thing that stays the same is the project's goal: to equip the bike with a frame, engine and components of the highest level, and bring the new frontier of RideAbility to the MX world. What does RideAbility mean for Beta? It means designing and building bikes whose rideability is their core value. Each Betamotor-branded motorbike is designed by the Florentine manufacturer to provide any rider with a motorcycle which is simultaneously easy to ride and high in performance. A product able to extract the best from any rider, thanks to an engine-frame combination which is able to provide a fun ride, without any reason to ever fear the world championship-level performance of the engine. RX 300 and 450 perfectly meet this goal, each in its own way: both represent the perfect combination of power and control, by placing handling and Betamotor's typical family feeling ease of use at the centre of the design, fully focused on uncompromising fun.

Features may include:

  • Silent handlebar block: comfort and Motocross are notoriously two rather distant concepts, but with the new Silent blocks equipped on this model, this distance is significantly bridged. With the aim of making the grip on the handlebar - and therefore control on the bike - as comfortable as possible, this new model upgrade reduces vibrations and raises the handlebar by 5 mm compared to the previous model, tiring the rider less and thus improving performance.
  • Footpegs: the 2025 model receives new, less bulky footpegs, with an enhanced grip performance provided to the rider's boot, to keep the bike under control at all times.
  • Swingarm: the rear wheel axle pin has been reinforced, gaining 2 mm in diameter, for a total of 22 mm. This new component guarantees greater stiffness and torsional resistance, resulting in a bike that is always precise and well steered, even in the most violent accelerations.
  • Engine maps: both the RX models are equipped with two specific engine maps (wet and dry), while the 4- Stroke model has also four levels of Traction Control (on/off/active with hard map/active with soft map) to manage the vehicle's significant power in all terrain conditions. The button to select the map and TC is located on the handlebar bumper.

Engine

Engine Type Single cylinder, 4-stroke, liquid-cooled
Displacement 449,3 CC
Bore 97 mm
Stroke 60,8 mm
Compression Ratio 13,5:1
Exhaust BPV Systsem
Starter Electric starter
Ignition AC Kokusan - digital CDI with oil pump controller
Spark Plug NGK LKAR 8A-9
Induction induction reed
Lubrication 2 oil pumps
Carburetion Keihin PWK 38
Oil Type SAE 10W/50 0,8 l. + SAE 10W/40 0,8 l.
Fuel Economy: Combined City/Hwy 2,7 L/100 km
Emissions 59 Co2 [g/km]

Drivetrain

Clutch wet multi-disc clutch
Primary Drive Z.31/72
Transmission 5 marce
Final Drive chain

Chassis

Frame Type Molybdenum steel with double cradle split above the exhaust port

Suspension

Front Suspension Kayaba Hydraulic USD closecartridge fork with 48 mm shaft
Rear Suspension Kayaba Monoshock with progressive compound lever
Shock Absorber 133 mm

Brakes

Front braking system Wave disc ø260 mm and double-piston floating caliper
Rear braking system Wave disc ø240 mm and single-piston floating caliper

Wheels & Tires

Front Wheel Travel 305 mm
Rear Wheel Travel 300 mm
Front Tire 80/100 - 21
Rear Tire 110/90 -19
Front Wheel Rim: 21 x 1,6 - 36 holes
Rear Wheel Rim: 19 x 2,15 - 36 holes

Dimensions

Wheelbase 1485 mm
Length 2170 mm
Width 830 mm
Height 1270 mm | Footrest: 422 mm
Seat Height 945 mm
Ground Clearance 335 mm

Capacities

Fuel Capacity Tank: 7,0 l. | Reserve: 1,4 l.

Weights

Dry Weight 104,5 kg (front 51,4 kg; rear 53,1 kg)

Product Photography