At the heart of the 2024 Beta Evo Factory 2T 125 trial motorcycle, Beta utilizes a 124.8 cc (7.6 cu in) liquid-cooled single cylinder, two-stroke layout. Internal engine geometry specifies a bore and stroke of 54.0 x 54.5 mm (2.1 x 2.1 inches) with a 15.9:1 compression ratio.
Rider ergonomics and chassis geometry center around a 660 mm (26 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,305 mm (51.4 in) wheelbase engineered for quick, flickable steering geometry. The 2.8-liter (0.7 US gal) fuel tank paired with a rated consumption of 2.6 L/100 km provides an estimated theoretical range of roughly 108 km (67 miles) between fill-ups.
Within MotoLibrary's Beta archive, this model family spans 2 indexed model years from 2021 to 2024, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Theoretical Range
~108 km (67 mi)
Engine
Displacement124.8 ccm (7.62 cubic inches)
Engine TypeSingle cylinder, two-stroke
Engine DetailsLamellar induction in the crankcase
Compression15.9:1
Bore x Stroke54.0 x 54.5 mm (2.1 x 2.1 inches)
Fuel SystemCarburettor. Keihin PWK 28mm
IgnitionElectronic Hidra 12V 110W
LubricationMix with fuel 1,5 % synthetic oil
CoolingLiquid
Transmission
Gearbox6-speed
Final DriveChain (final drive)
ClutchWet multi-disc clutch with cush-drive rubber
Performance
Fuel Consumption2.60 litres/100 km (38.5 km/l or 90.47 mpg)
Greenhouse Gases60.3 CO2 g/km. (CO2 - Carbon dioxide emission)
Chassis
Frame TypeHydroformed Alloy
Front SuspensionHydraulic fork 38mm with compression and rebound adjuster
Front Travel165 mm (6.5 inches)
Rear SuspensionRear shock with coaxial tank and compression and rebound adjuster
Rear Travel180 mm (7.1 inches)
Wheelbase1305 mm (51.4 inches)
Ground Clearance310 mm (12.2 inches)
Wheels & Brakes
Front Tyre2.75-21
Rear Tyre4.00-18
Front BrakesSingle disc. 4 piston caliper
Front Brake Ø185 mm (7.3 inches)
Rear BrakesSingle disc. 2 piston caliper
Rear Brake Ø160 mm (6.3 inches)
WheelsMichelin X-Light tires
Dimensions & Weight
Seat Height660 mm (26.0 inches) If adjustable, lowest setting.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
