First Look
Limited-Edition Motocross Motorcycle: 2021 Beta 300 RX
Limited-Edition Motocross Motorcycle: 2021 Beta 300 RX
13 Jul 2020 First Look
Sponsored by Moto Animals

Introducing the all-new 2021 Beta 300 RX! A new model from the Italian family motorcycle manufacturer that promises to bring "Rideability" to the MX world.


The new 300 RX features an electric start 293.1cc two-stroke power plant with a 6-speed transmission. The engine has been tuned exclusively for moto in every way. With an adjustable power-valve, riders can dial-in the amount of "hit" the engine provides.

The chassis includes a special frame built just for the RX model, as well as longer-travel suspension. The KYB closed cartridge front fork and Sachs rear shock has internal settings that were developed by Beta USA's in-house suspension department.

The bike is designed for all levels and ages. Check out the video below with 5-time GNCC champion and hall of famer Rodney Smith, Supercross champion Jake Weimer, and Hare & Hound champ Chance Fullerton showing off the potential of the new RX model.


Beta USA's Tim Pilg comments, "We wanted to build an MX bike that utilized many of the characteristics that our off-road race bikes have but with more power and stiffer suspension. The RX model shows how much fun a 2-stroke can be. The sound and feel of the bike is unmatched and I hope our future owners of the model will appreciate the effort put into the bike. It is truly special."

Other features of the RX include a lightweight lithium battery, 19" rear wheel, push-button seat removal, Brembo hydraulic clutch, Nissin front and rear brakes with oversize rotors, plated Arrow pipe, composite rear sub-frame, and a V-Force reed assembly. The rear shock can be removed in less than 10 minutes without the need to unbolt the rear sub-frame


Every 300 RX is delivered with a side stand that can be removed. The bike also comes with a MX stand as well.

The first shipments are scheduled for late October however most will be sold out by the time they reach the dealers so riders are encouraged to reach out to their Beta dealer and leave a deposit to ensure delivery. Riders can also reserve one by clicking the box below and leaving an $889.00 refundable deposit. This will ensure delivery to the dealer of their choice from the production.


2021 Beta 300 RX Specs


  • Type: Single-cylinder 2-stroke w/ counterbalancer
  • Displacement: 293cc
  • Bore x stroke: 72 x 72mm
  • Compression ratio: 11.9:1
  • Induction: V-Force case reed
  • Fueling: Keihin 38mm PWK
  • Exhaust: Adjustable power valve w/ expansion chamber
  • Starting: Electric
  • Lubrication: Premix
  • Transmission: 6-speed
  • Clutch: Wet multi-disc
  • Final drive: O-ring chain


  • Frame: Double-cradle chromoly steel
  • Front suspension; travel: Compression- and rebound-damping adjustable 48mm inverted KYB AOS Closed Cartridge fork; 12.15 inches
  • Rear suspension; travel: Linkage-assisted fully adjustable Sachs piggyback-reservoir shock; 11.6 inches
  • Rims: Excel Takasago
  • Tires: Michelin Starcross
  • Front tire: 90/90 x 21
  • Rear tire: 120/80 x 19
  • Front brake: 260mm Galfer rotor w/ 4-piston Nissin caliper
  • Rear brake: 240mm Galfer rotor w/ 2-piston Nissin caliper


  • Wheelbase: 58.3 inches
  • Seat height: 37.3 inches
  • Ground clearance: 12.9 inches
  • Fuel tank capacity: 2.55 gallons
  • Dry weight: 243 pounds

2021 Beta 300 RX Price: $9199 MSRP

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