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RX 4T 450 MY26

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Model Description


RX 450 4T MY 2026

Beta lands on a new fun dimension, with the new RX My2026, proving to believe in the MX project like never before. It expands its line and lays new foundations to develop a complete 2- and 4-Stroke model range.

Two all new models that will revolutionize the 2Str market join the updated RX 450 for MY26, as announced at EICMA, during the new Champions Charity Race with MotoGP and racing legends, the 2Str range welcomes the new 350cc engine, also joining the 2 Str RX family is the race-inspired RX 250! The only thing left to do is choose one and hit the track for some fun!

So, what does having fun on a Beta mean? One word, RideAbility. Each Betamotor-branded motorcycle is designed by the Italian manufacturer to provide any rider with a bike which is simultaneously easy to ride yet high in performance. A product able to get all the best from any rider, thanks to an engine-frame combination which is able to provide a fun ride, without reason to ever fear the world championship-level performance of the engine, making RideAbility its core value.

RX 450 4Str is the fans’ chance to ride a Made-in-Beta MX closely resembling the race bike that’s been running in the MXGP World Championship for five years now and in the American AMA Supercross series since 2024. The Model Year 2026 RX 450 has been updated with a massive performance step, making the power delivery close to that of the factory bikes, while keeping the brand’s signature ease of control intact.

Model Specification


  • Frame

    Frame

    Molybdenum steel with double cradle split above the exhaust port

    Wheelbase

    1485 MM

    Max Length

    2170 MM

    Max Width

    825 MM

    Max Height

    1270 mm

    Seat Height

    945 mm

    Ground Clearance

    330 mm

    Footrest Height

    410 mm

    Fuel Tank Capacity

    7.0L

    Reserve

    Cooling System Capacity

    Front Suspension

    Rear Suspension

    Shock Absorber Stroke

    Front Wheel Travel

    Hydraulic USD fork with ø48 mm shaft

    Rear Wheel Travel

    Monoshock with progressive compound lever

    Front Brake

    Rear Brake

    Front Rim

    Rear Rim

    Front Tyre

    Rear Tyre

  • Engine

    Engine Type

    Single cylinder, 4-stroke, liquid-cooled

    Bore

    97 mm

    Stroke

    60.8 mm

    Displacement

    449,3 cc

    Compression Ratio

    Ignition

    Spark Plug

    Lubrication

    DOHC finger follower / 4 valve, intake titanium, exhaust steel

    Feeding

    Carburettor

    Spark Advance

    Clutch

    Wet multi-disc clutch

    Primary Transmission

    Transmission

    5 Gears

    Secondary Transmission

    Engine Oil

    SAE 10W/50

    Battery Capacity

  • Performance

    Operating Time