GAS GAS Gas EX 250 - 2025 Specifications and Reviews

The 2025 GAS GAS EX 250 is a competitive two-stroke enduro machine designed for aspiring racers and serious off-road enthusiasts seeking lightweight agility and responsive performance. Powered by a 249cc liquid-cooled single-cylinder engine with modern Keihin fuel injection, it delivers the characteristic power delivery and simplicity enduro riders demand. Built on a robust steel cradle frame with premium suspension geometry, the EX 250 excels in technical terrain and enduro competition.

2025
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General information

Color OptionsRed/white
CategoryEnduro / offroad
 
 

Engine and Transmission Specifications

StartingElectric
ClutchDDS wet multi-disc clutch, Braktec hydraulics
Final DriveChain (final drive)
Gearbox6-speed
Cooling SystemLiquid
IgnitionVitesco Technologies EMS
InductionInjection. Keihin EFI, throttle body 39 mm
Bore x Stroke66.4 x 72.0 mm (2.6 x 2.8 inches)
Engine TypeSingle cylinder, two-stroke
Capacity:249.0 ccm (15.19 cubic inches)

Physical measures and capacities

Fuel Capacity9.00 litres (2.38 US gallons)
Wheelbase1489 mm (58.6 inches)
Ground Clearance354 mm (13.9 inches)
Overall Width810 mm (31.9 inches)
Overall Length2145 mm (84.4 inches)
Overall Height1235 mm (48.6 inches)
Seat Height956 mm (37.6 inches) If adjustable, lowest setting.
Dry Weight102.3 kg (225.5 pounds)

GAS GAS Gas EX 250 dimensions and frame

WheelsSpoked wheels with aluminium rims
Rear BrakesSingle disc
Brake Disc Diameter220 mm (8.7 inches)
Front BrakesSingle disc
Rear Tyre120/90-18
Front Tyre90/90-21
Rear Wheel Travel300 mm (11.8 inches)
Rear SuspensionWP XACT Monoshock with linkage
Front Wheel Travel310 mm (12.2 inches)
Front SuspensionWP-USD, XACT PRO 7548 Fork, 48 mm
FrameCentral double-cradle-type 25CrMo4 steel.

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Update specsReport missing specs or required updates.
Electrical2 Ah battery.
Rake (fork angle)26.1°
Exhaust systemAluminium
Driveline520 X-ring chain
Year of manufacture2025
Motorcycle nameGAS GAS EX 250

Rider Fit Visualizer

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 956mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with cannot reach comfortably on the 2025 GAS GAS Gas EX 250, with a cramped knee angle of around 85 degrees and an upright riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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