2025 GAS GAS EX 250 Technical Analysis & Specification Breakdown
At the heart of the 2025 GAS GAS EX 250 enduro - offroad motorcycle, GAS GAS pairs a 249 cc (15.2 cu in) liquid-cooled single cylinder, two-stroke architecture with road-focused gearing. Internal engine geometry specifies a bore and stroke of 66.4 x 72.0 mm (2.6 x 2.8 inches).
On the scales, the EX 250 measures 102.3 kg (226 lbs) dry. Rider ergonomics and chassis geometry center around a 956 mm (37.6 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,489 mm (58.6 in) wheelbase engineered for balanced agility and highway composure. The 9-liter (2.4 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's GAS GAS archive, this model family spans 2 indexed model years from 2023 to 2025, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
956 mm (37.6 in)
Engine
Displacement249.0 ccm (15.19 cubic inches)
Engine TypeSingle cylinder, two-stroke
Bore x Stroke66.4 x 72.0 mm (2.6 x 2.8 inches)
Fuel SystemInjection. Keihin EFI, throttle body 39 mm
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.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
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.
