Evo SS
EVO Sport
Standard Evo

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.

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

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


Engine Specs:

Type: Single cylinder, 2-stroke, liquid-cooled w/ reed valve
Bore: 72.5mm
Stroke: 60.5mm
Displacement: 249.7 cc
Compression Ratio: 9:1
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

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:

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: 148 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: 11t front, 41t 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: $8,099.00

*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