2009 GAS GAS TXT 50 Boy Technical Analysis & Specification Breakdown
At the heart of the 2009 GAS GAS TXT 50 Boy trial motorcycle, GAS GAS pairs a 49.4 cc (3 cu in) liquid-cooled single cylinder, two-stroke architecture with road-focused gearing. Internal engine geometry specifies a bore and stroke of 40.0 x 39.3 mm (1.6 x 1.5 inches).
On the scales, the TXT 50 Boy measures 42 kg (93 lbs) dry. Rider ergonomics and chassis geometry center around a 600 mm (23.6 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,005 mm (39.6 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 3 indexed model years from 2006 to 2009, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
600 mm (23.6 in)
Engine
Displacement49.4 ccm (3.01 cubic inches)
Engine TypeSingle cylinder, two-stroke
Engine DetailsSingle cylinder, two-stroke
Bore x Stroke40.0 x 39.3 mm (1.6 x 1.5 inches)
Fuel SystemCarburettor. 14mm Dell´Orto
IgnitionVariable Electronic
Lubrication2% Mixture
CoolingLiquid
Transmission
Gearbox2-speed
Final DriveChain (final drive)
ClutchDouble, hydraulic and automatic clutch
Chassis
Front Suspension32mm Marzocchi fork
Front Travel140 mm (5.5 inches)
Rear SuspensionHydraulic Sachs shock
Rear Travel155 mm (6.1 inches)
Wheelbase1005 mm (39.6 inches)
Wheels & Brakes
Front Tyre2.50-16
Rear Tyre3.00-14
Front BrakesSingle disc. 2 opposed-piston caliper
Front Brake Ø160 mm (6.3 inches)
Rear BrakesSingle disc. 2 opposed-piston caliper
Rear Brake Ø150 mm (5.9 inches)
Dimensions & Weight
Dry Weight42.0 kg (92.6 pounds)
Seat Height600 mm (23.6 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.
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.
