New 2026 BETA 350 RX

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New 2026 BETA 350 RX
Pricing Details
Out The Door Price: $11,788

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New 2026 BETA 350 RX


Vehicle Details
  • Stock #: BE0277
  • VIN: ZD3E7M97XT0300277
  • Engine: Beta Built single cylinder, 2-stroke, liquid cooled, with BPV power valve system and counter balancer, electric start with back-up kick starter sold as an option
  • Exterior Color: RED

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350 RX

350 RX: All new for 2026, this new model replaces the 300 version for the 2026 season. New engine cases, bore and stroke, as well as a twin-plug head to ignite the special power only a big-bore 2-stroke can provide. The longer crankshaft, combined with the final gearing ratio of 14/47, provides a large amount of torque and overall horsepower that will turn some heads. This new 350 motocrosser will thrive in many different track conditions. Clearly in a class of its own!

 

    Specifications
    • ENGINE TYPE: Beta Built single cylinder, 2-stroke, liquid cooled, with BPV power valve system and counter balancer, electric start with back-up kick starter sold as an option
    • BORE: 78mm
    • STROKE: 73.6mm
    • DISPLACEMENT: 351.7cc
    • COMPRESSION RATIO: 12:45:1
    • VALVE TRAIN: Beta Progressive Valve (BPV)
    • IGNITION: AC-CDI Kokusan
    • SPARK PLUG: Dual MR7CI8
    • LUBRICATION: Pre-Mix
    • FUEL SYSTEM: Keihin PWK 38mm
    • CLUTCH: Wet Diaphragm-style
    • TRANSMISSION: 5 Speed
    • FINAL DRIVE: O-ring chain
    • FRAME: Molybdenum steel / Double Cradle w/ quick air filter access
    • WHEELBASE: 58.7"
    • SEAT HEIGHT: 37.2"
    • GROUND CLEARANCE: 13.4
    • FOOTREST HEIGHT: 16.6"
    • DRY WEIGHT: 220.5 lbs (wet weight, no fuel)
    • FUEL TANK CAPACITY: 1.5 US Gallons
    • FRONT SUSPENSION: 48 mm KYB AOS Closed Cartridge with adjustable compression & rebound
    • REAR SUSPENSION: KYB 50 mm body with adjustable rebound and high/low speed on compression adjustment
    • FRONT WHEEL TRAVEL: 12.0"
    • REAR WHEEL TRAVEL: 11.8"
    • FRONT BRAKE: 260 mm floating rotor
    • REAR BRAKE: 240 mm rotor
    • FRONT/REAR RIM: 21" (Front) 19" (Rear)
    • FRONT/REAR TIRE: 80/100 | 120/80
    • SPECS: *Specifications subject to change without notice. Additional information on all models including manuals, accessories and parts books are available online at www.betausa.com under SUPPORT.

    Disclaimer

    Advertised pricing excludes applicable title and registration fees paid to the State of Alaska. Pricing excludes any dealer-added parts, accessories or installation unless otherwise noted. Pricing subject to change without notice. Sales prices include manufacturer rebates and are subject to change. Contact dealer for details. We will make our best efforts that posted prices are always accurate however, we are not responsible for any typographical or other errors that may appear on the site. If the posted price for a vehicle or service is incorrect due to a typographical or other error, such as data transmission, etc., this Dealership or Pixel Motion, Inc. are only responsible for the correct price, which will be provided as soon as we are made aware of such error(s). Ultimately, it is your responsibility to ensure that the information is 100% accurate with the Dealer. Posted vehicle images and descriptions on our website is representative to what is provided by our suppliers. Please note that the actual vehicle may slightly differ from its specifications and/or images. The Dealership is not responsible for any typographical, pricing, product specifications, advertising or shipping errors. Advertised prices and availability are subject to change without notice. In the event a vehicle is posted at an incorrect price due to these errors, or if an error in pricing was received from our suppliers, the Dealership reserves the right to refuse and/or cancel these orders.

    New 2026 BETA 350 RX
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