2026 Beta EVO 300 4-Stroke 

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    Description

    2026 Beta EVO 300 4-Stroke

    Trials riding is a proven foundation for improving performance across all on-road and off-road disciplines, making a trials motorcycle an ideal addition to any rider's garage. Because the sport is quiet and low-impact, it can be enjoyed by riders of all ages in a wide variety of settings. Trials offers a customizable level of challenge: you can enjoy a casual afternoon play-riding in a confined space with friends or enter a local competition and choose a skill class tailored for a more structured, competitive experience.  As Beta transitions to the all-new Sincro line of trial motorcycles, the Evo line lives on with the proven Evo 300 4-stroke. 

    For those who like thumpers, the Evo 300 4-stroke is the bike of choice. Over 8 lbs. lighter than the other brands' 4-stroke, as well as a tighter turning radius, the Evo 300 4-stroke is known for being a more gentle bike to ride while also being "whisper-quiet". The bulletproof engine design is easy to work on and will provide years of trial fun!

    Features May Include

    Hydro-Formed Aluminum Frame w/ Built-in Fuel Cell: Strong and rigid, providing the perfect rider feedback while offering the tightest turning radius in the industry. The rear swing-arm is also made from hydro-formed aluminum.

    Tubeless Rear Tire: Provides sidewall flex while running very low tire pressures for added grip. Turn-buckle spoke nipples eliminate the rim strip for easier tire changes.

    Electronic key: The key is composed of two parts: one part remains fastened to the bike's handlebars, while the other is magnetic (worn by the rider with a cord around their wrist), activating a mechanism in the event they are disconnected, functioning as a “Kill-Switch”. Unlike a normal kill switch, the new electronic key also incorporates an anti-theft function, preventing the bike from being started when disconnected, thanks to coding that uniquely links the bike to the key, protecting against theft of the vehicle when it is left unattended.
    
    Plastic and Airbox: Minimal plastic pieces to reduce weight, including a formed tank cover that provides the proper routing of all cables and wires. The one-piece rear fender has an access lid for a quick air filter change.


    Info

    Industry

    Powersports

    Make

    Beta

    Model

    EVO 300 4-Stroke

    Trim

    Base

    Year

    2026

    MSRP

    8990

    Category

    Motorcycle

    Subcategory

    Dirtbike


    Specs

    Engine Type

    Single cylinder, 4-stroke, 4-valve, liquid-cooled | Spark Plug: NGK MR7BI-8

    Bore x Stroke

    84 mm x 53.6 mm

    Engine Disp to Wgt

    297.3 cc

    Compression Ratio

    9.7:1

    Ignition/Starter

    Electronic 12 Volt w/ dual-map switch (aggressive or soft settings)

    Lubrication System

    Internal oil pump w/ cartridge filter

    Fuel System

    Mikuni CV

    Fuel Type

    Gasoline

    Clutch

    Wet multi-disc

    Transmission

    5 Speed

    Drive Train

    Final Drive: O-ring chain | Final Gearing: 11T Front/42T Rear

    Frame

    Aluminum beam, single wave Hydro-Formed w/ built in tank

    Wheelbase

    51.4 in

    Seat Height

    26 in

    Ground Clearance

    12.2 in

    Height

    Footrest: 13.6 in

    Weight (Dry)

    155 lbs

    Fuel Capacity

    0.75 US gal

    Suspension (Front)

    39 mm Ollé w/ hard-coated tubes

    Suspension (Rear)

    Adjustable single shock, aluminum bodied, with nitrogen, including linkage

    Wheels

    Front Rim: 21 in | Rear Rim: 18 in | Front Wheel Travel: 6.5 | Rear Wheel Travel: 7.1 in

    Front Brake

    185 mm rotor w/ 4-piston caliper

    Rear Brake

    160 mm rotor w/ twin-piston caliper

    Front Tire

    Dunlop D803

    Rear Tire

    Dunlop D803