2004 GAS GAS TXT Pro 250 Technical Analysis & Specification Breakdown
Built around GAS GAS's trial motorcycle platform, the 2004 GAS GAS TXT Pro 250 pairs a 247.7 cc (15.1 cu in) liquid-cooled single cylinder, two-stroke architecture with road-focused gearing. Internal engine geometry specifies a bore and stroke of 72.5 x 60.0 mm (2.9 x 2.4 inches).
Rider ergonomics and chassis geometry center around a 665 mm (26.2 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,330 mm (52.4 in) wheelbase engineered for quick, flickable steering geometry. The 3-liter (0.8 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's GAS GAS archive, this model family spans 6 indexed model years from 2004 to 2016, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
665 mm (26.2 in)
Engine
Displacement247.7 ccm (15.11 cubic inches)
Engine TypeSingle cylinder, two-stroke
Engine DetailsSingle cylinder, two-stroke
Bore x Stroke72.5 x 60.0 mm (2.9 x 2.4 inches)
Fuel SystemCarburettor
CoolingLiquid
Transmission
Gearbox6-speed
Final DriveChain (final drive)
Chassis
Frame TypeCrMo steel
Front SuspensionMarzocchi telehydrailc fork, 38 mm
Rear SuspensionVariable progressive system
Wheelbase1330 mm (52.4 inches)
Wheels & Brakes
Front BrakesSingle disc
Front Brake Ø185 mm (7.3 inches)
Rear BrakesSingle disc
Rear Brake Ø150 mm (5.9 inches)
Dimensions & Weight
Seat Height665 mm (26.2 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.
