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Overview:
Beta builds the best trials bikes in the world. Our Evo 2-Stroke editions are the top seller of Trials bikes in the USA for a good reason. Evo models offer versatility for any type of Trials terrain & give all experience levels the right fit for their needs.
Evo 250 & 300 SS: Both models are perfect for the Clubman rider, this is a class where most current motocross and off road racers will compete in at the local level. The Evo 250 and the 300 SS (Which stands for Super Smooth) have similar power delivery characteristics with the SS model providing 20% more torque with less over-rev vs the 250.
Evo 300: This is the number one selling trial model in the world, a proven bike that can be play-ridden or competed on at the highest level of the sport. The exceptional power delivery offers a broad range power delivery as well as a very light feel while in the section. The Evo 300 is a staple in the trial world.
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.
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Features: Six speed transmission, hydro-formed aluminum frame, MAP switch to toggle engine map settings depending on conditions, tight turning radius, hydraulic clutch, Beta exclusive electronic key & safety kill switch, tubeless rear tire, domino grips, optimized radiator grill for better air flow, improved carburetion and ignition mapping.
Competition tires with numerous national championships to their credit. Designed for professional and amateur trials riders alike. This tire complements the precision & handling of the EVO range
Domino Grips help to achieve maximum control and comfort providing solid grip.
New Electronic Key serves as anti-theft device as well as a safety kill-switch when cord connect to bike around wrist of rider disconnects.
The EVO 300 SS smooths out the power pulses and provides a softer power delivery by utilizing a heavier flywheel and a different primary ratio on the clutch gear and primary gear. The cylinder head and exhaust muffler are also designed to smooth out the engine.
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 order look.
MAP Switch to switch between two different engine modes depending on the riding conditions.
| MODEL | EVO 250 |
| ENGINE TYPE | Single cylinder, 2-stroke, liquid-cooled with reed valve (starter as an option) |
| BORE | 72.5mm |
| STROKE | 60.5mm |
| DISPLACEMENT | 249.7cc |
| 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) |
| FUEL SYSTEM | Keihin PWK 28mm |
| CLUTCH | Wet multi-disc w/ cush-drive basket |
| TRANSMISSION | 6 Speed |
| FINAL DRIVE | O-ring chain |
| FRAME | Aluminum beam, single wave Hydro-Formed w/ built in tank |
| WHEELBASE | 51.4" |
| SEAT HEIGHT | 26" |
| GROUND CLEARANCE | 12.2" |
| FOOTREST HEIGHT | 13.6" |
| DRY WEIGHT | 146 lbs |
| FUEL TANK CAPACITY | .75 US Gallons |
| FRONT SUSPENSION | 38mm Paioli w/ hard-coated tubes |
| REAR SUSPENSION | Adjustable single shock, aluminum bodied, with nitrogen, including linkage |
| FINAL GEARING | 10T Front/42T Rear |
| FRONT WHEEL TRAVEL | 6.5" |
| REAR WHEEL TRAVEL | 7.1" |
| 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 | Michelin Trial Light/Trial X-Light |
| SPECS | *Specifications subject to change without notice. |
