• B.Y.O.B.
  • Evo 300 Sport 4-stroke


    Standard Evo

    • Hydro-formed aluminum frame with fuel in the frame

    • Reversed flywheel moves weight mass to the center of the bike providing more balance

    • Tightest turning radius of all other brands

    EVO Sport

    • Designed for slow speed trail riding

    • Long range seat/tank for more longer, more comfortable rides

    • Knobby tires provide better traction on the trail

    • Hand guards for protection

    Evo 4 stroke features

    • Lightest 4 stroke trial bike on the market

    • Hydro-formed aluminum frame with fuel in the frame

    • Tightest turning radius of all other brands

    Evo SS

    • “Hi-Torque” exhaust system

    • Heavier flywheel to help smooth out the power.

    • Slower turn throttle assemble

    • Different combustion chamber to reduce the engine’s power pulses

    • Heavier primary drive gear for additional smoothness.


    Engine Specs:

    Type: Single cylinder, 4-stroke, 4-valve, liquid-cooled
    Bore: 84mm
    Stroke: 53.6mm
    Displacement: 297.3cc
    Compression Ratio: 11.5:1
    Ignition: Electronic 12 volt, 85 watt w/ dual-map switch (aggressive or soft settings)
    Spark Plug: NGK CR7EB
    Lubrication: Internal oil pump w/ cartridge filter
    Carburetor: Mikuni CV
    Clutch: Wet multi-disc
    Transmission: 5-speed

    Items included with all Evo Sport models:
    -Long Range fuel tank with built-in seat for trail riding
    -Knobby tires
    -Front fender lift kit to prevent mud packing into fender
    -Beta hand guards
    -Distance meter mounted on handlebars
    -Larger countershaft sprocket for casual trail riding
    -Special graphics

    Chassis Specs:

    Chassis Frame: Aluminum beam, single wave Hydro-Formed w/built in fuel tank
    Wheelbase: 51.4”
    Seat Height: 32”
    Ground Clearance: 12.2”
    Footrest Height: 13.6”
    Dry Weight: 158.5 lbs. dry
    Fuel Tank Capacity: 2 US gallons (both tanks)
    Front Suspension: 38mm Paioli including hard-coated tubes
    Rear Suspension: Single shock, aluminum bodied including linkage, adjustable dampening
    Front Wheel Travel: 6.5”
    Rear Wheel Travel: 7.1”
    Final Gearing: 12t front, 42t rear
    Front Brake: 185mm rotor w/ 4-piston caliper
    Rear Brake: 160mm rotor w/ twin-piston caliper
    Front/Rear Rim: 21” (Front) 18” (Rear)
    Front/Rear Tire: Shinko knobby
    Warranty: 6 month Limited Warranty
    MSRP: $8399.00
    *specifications subject to change without notice.
    Additional information on all models including manuals, accessories and parts books are available online at BetaUSA.com under Support.