2025 Beta EVO 300 4-Stroke Base

2025 Beta EVO 300 4-Stroke Base

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Exterior Colors:

  • Year 2025
  • Make Beta
  • Model EVO 300 4-Stroke
2025 Beta EVO 300 4-Stroke Base

2025 Beta EVO 300 4-Stroke Base

2025 Beta 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!

The 4-stroke model also boasts an engine capacity of 300 cc, and strikes the perfect balance between performance, tractable engine power and overall usability. This engine embraces a completely different approach to riding than its 2-stroke siblings. With plenty of torque and linear, extremely progressive power delivery, this is the perfect bike for the amateur looking for a machine suitable for less challenging competitive use and motorcycle mounting climbing.

The main new feature for 2025 is an updated suspension. Produced by Ollé the new fork provides an increase in torsional rigidity at the front wheel which improves the precision and ease of the bike's ride. The new forks also allow the fork to react quicker over rocks and other section obstacles. The Ollé rear shock is also new and like the fork it is completely adjustable as well in terms of preload and hydraulic adjustment. The shock improves on rebound management and the ability to absorb significant impacts.

Features may include:

  • Competition tires with numerous national championships to their credit. Designed for professional and amateur trial riders alike. This tire complements the precision & handling of the EVO range.
  • Radiator Grill designed to optimize airflow directed at radiator with more protective surface to prevent damage from falls, branches, or rocks.
  • Tank cover designed with a shape that flows with frame and allows better cable management for a clean and more orderly look.
  • Domino Grips help to achieve maximum control and comfort providing solid grip.

Engine

Engine Type Single cylinder, 4-stroke, 4- valve
Displacement 297.3cc
Bore 84mm
Stroke 53.6mm
Compression Ratio 9.7:1
Cooling liquid cooled
Lubrication Internal oil pump w/ cartridge filter
Ignition Electronic 12 Volt w/ dual-map switch (aggressive or soft settings)
Spark Plug NGK MR7BI-8
Carburetion Mikuni CV

Drivetrain

Clutch Wet multi-disc w/ cush-drive basket
Transmission 5 Speed
Final Drive O-ring chain
Final Gear 11T Front/42T Rear

Chassis

Frame Type Aluminum beam, single wave Hydro-Formed w/ built in tank
Exhaust Beta Progressive Valve (BPV)

Suspension

Front Suspension 38mm Paioli w/ hard-coated tubes
Rear Suspension Adjustable single shock, aluminum bodied, with nitrogen, including linkage

Brakes

Front braking system 185mm rotor w/ 4-piston caliper
Rear braking system 160mm rotor w/ twin piston caliper

Wheels & Tires

Front Wheel Travel 6.5"
Rear Wheel Travel 7.1"
Front Tire Michelin Trial Light
Rear Tire Trial X-Light
Front Wheel Rim: 21"
Rear Wheel Rim: 18"
Front Tire Michelin Trial Light
Rear Tire Trial X-Light

Dimensions

Wheelbase 51.4"
Seat Height 26"
Ground Clearance 12.2"
Height Footrest: 13.6"

Capacities

Fuel Capacity Tank: .75 US Gallons

Weights

Dry Weight 155.5 lbs (dry weight)

Product Photography