Competition Wheels & Cycles inc.


Beta 2020 EVO 300 SS




  • Special Titanium exhaust header pipe to reduce the engine’s power pulses
  • Heavy flywheel assembly
  • Smaller front sprocket to work in junction with the exhaust pipe and flywheel
  • Larger diameter Domino grips
  • Slow action throttle assembly with a special throttle wheel to improve the power delivery
  • Special “Super Smooth” decals
  • Available in 300 cc 2 stroke only



  • “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.


Beta EVO 300 SS Specifications for 2020


Engine Specs:


Type: Single cylinder, 2-stroke, liquid-cooled w/ reed valve
Bore: 79mm
Stroke: 60.5mm
Displacement: 299cc
Compression Ratio: 10:1
Ignition: 12 volt, 110 watt w/ dual-map switch (aggressive or soft settings)
Spark Plug: NGK GR7CI8
Lubrication: Pre-mix (synthetic oil)
Carburetor: Keihin PWK 28mm
Clutch: Wet multi-disc w/ cush-drive basket
Transmission: 6-speed


Chassis Specs:


Frame: Aluminum beam, single wave Hydro-Formed w/built in fuel tank    
Wheelbase: 51.4”
Seat Height: 26”
Ground Clearance: 12.2”
Footrest Height: 13.6”
Dry Weight: 146 lbs. dry
Fuel Tank Capacity: .75 US gallons (both tanks)
Front Suspension: 38mm Paioli including hard-coated tubes
Rear Suspension: Adjustable single shock, aluminum bodied with nitrogen including linkage
Front Wheel Travel: 6.5”
Rear Wheel Travel: 7.1”
Final Gearing: 10t 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:  Dunlop  Trial
Warranty: 6 month Limited Warranty

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Pricing Information:

Competition Wheels and Cycles, Inc.
James and Janet McKenzie
5851 Weddington Road
Concord, NC. 28027
Phone: (704) 906-3238