2025 Beta 450 RX

Available for Order!
MoreLess
Limited Time Offer!

Selling Price -$10,999.00

2025 Beta 450 RX

In 2024, Beta launched the 450 RX model that would show off the talents of the engineering team based in Florence, Italy. The 450 RX 4 stroke had been tested in the prestigious MXGP class for more than three years as a factory prototype model. The production version of this prototype was very well received by riders as well as the media. The 2025 RX model continues the Beta Rideability mission in Motocross. Rideability is the smoothness, ease of handling, and overall comfort experienced on a Beta Motorcycle. It encompasses factors such as throttle response, suspension performance, ergonomic design, and stability all contributing to a seamless ad enjoyable riding experience. Rideability is the perfect balance of power and agility that provides riders with confidence inspiring control and effortless maneuverability, resulting in a gratifying ride, no matter the conditions.

The 2025 450 RX model received updates bringing it closer to perfection than ever. Updates to sharpen the model’s weapons, ready to do battle on MX tracks throughout the USA. An even-stronger rear aluminum subframe, suspension upgrades, as well as a more powerful lithium battery are just a few.

Features may include:

  • Engine Mapping

The mapping has been updated with the latest settings that have been tested by the Beta race team. This along with traction control completes the electronic package of the RX model.

  • Footpegs

Enhanced grip performance while being less bulky so rider can maintain control at all times.

  • Handlebar mounts

XTrig FlexFix isoelastic bar mounts reduce rider fatigue and vibration. Also allows flexibility in handlebar adjustment.

  • 2025
  • Beta
  • 450 RX
  • Base
  • Off-Road
  • Single cylinder, 4 –stroke, 4-valve
  • Liquid cooled
  • 449.3cc
  • 97mm
  • 60.8mm
  • 13.5:1
  • Twin Oil Pumps w/Cartridge Filter & Separate Compartments For Engine & Transmission
  • 46mm Throttle Body
  • Dual-Map Kokusan with Traction Control
  • NGK LKAR8A-9
  • Finger followers w/ shim adjustment
  • Electric
  • Hydraulic, adjustable diaphragm multi-plate clutch
  • 5 Speed
  • DID drive chain
  • Molybdenum steel / Double Cradle w/ push button seat and quick air filter access
  • 48 mm KYB AOS closed cartridge fork, adjustable compression & rebound
  • KYB 50mm body with adjustable rebound and high/low speed on compression adjustment
  • 12"
  • 11.8"
  • 260 mm floating rotor
  • 240 mm rotor
  • 21"
  • 19"
  • Maxxis
  • Maxxis
  • 58.4"
  • 37.2"
  • 13"
  • Footrest: 16.1"
  • Tank: 1.8 US Gallons
  • 229 lbs
  •  Calculation is estimate only.
  •  
  •  
  •  
  •  
  •  
  •  
  •  Quotes are estimates only, actual rate may vary slightly.
  •  One-Way toll road charges will be the responsibility of the customer.
  •  Additional fees and/or duties may apply to International and non-continental US shipping requests.
  • $10,999.00
  • Simi Valley, California
  • New
  • 2025
  • Beta
  • 450 RX
  • 5 Speed
  • 229 lbs
  • Available
  • Footrest: 16.1"
Advertised pricing excludes applicable taxes title and licensing, dealer set up, destination, reconditioning and are subject to change without notice. Pricing may exclude any added parts, accessories or installation unless otherwise noted. Sale prices include all applicable offers. Not all options listed available on pre-owned models. Contact dealer for details.

Warning WARNING: Operating, servicing and maintaining a passenger vehicle, an off-highway motor vehicle or a recreational marine vessel can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle or vessel in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle or vessel. For more information go to https://www.p65warnings.ca.gov/products/passenger-vehicle and https://www.p65warnings.ca.gov/products/marine.