GAS GAS TXT Boy 50CC - 2013 Specifications and Reviews

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General information

Year2013

Engine and Transmission Specifications

ClutchAutomatic system with manual influence
Transmission type,final driveChain
Gearbox2-speed
Cooling systemLiquid
Lubrication system2% Mixture
IgnitionVariable Electronic
Fuel systemCarburettor. Dell´Orto PHVA14 - Intake by reed valve
Bore x stroke40.0 x 39.3 mm (1.6 x 1.5 inches)
Engine typeSingle cylinder, two-stroke
Capacity:49.38 ccm (3.01 cubic inches)

CategoryTrial
ModelGAS GAS TXT Boy 50cc
 
 

Brakes, suspension, Frame and wheels

WheelsLight aluminium spoke rim
Rear brakes diameter150 mm (5.9 inches)
Rear brakesSingle disc. 2-piston caliper
Front brakes diameter160 mm (6.3 inches)
Front brakesSingle disc. 2 -piston caliper
Rear tyre dimensions3.00-14
Front tyre dimensions2.50-16
Rear suspension travel155 mm (6.1 inches)
Rear suspensionHydraulic Sachs shock
Front suspension travel140 mm (5.5 inches)
Front suspension32mm Marzocchi fork
Frame typeChrom-Molybdenum tubular frame

Physical measures and capacities

Fuel capacity3.00 litres (0.79 gallons)
Wheelbase1,005 mm (39.6 inches)
Overall width660 mm (26.0 inches)
Overall length1,540 mm (60.6 inches)
Overall height970 mm (38.2 inches)
Seat height600 mm (23.6 inches) If adjustable, lowest setting.
Dry weight42.0 kg (92.6 pounds)
 
 

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Oil capacity2.50 litres (0.17 quarts)
Wheelbase1,305 mm (51.4 inches)
Ground clearance295 mm (11.6 inches)
Power/weight ratio0.0593 HP/kg
Rear tyre20/10-12
Front tyre21/7-10
Rear wheel travel254 mm (10.0 inches)
Rear SuspensionSwing Arm
Front wheel travel279 mm (11.0 inches)
Front SuspensionDual A-arm
Driveline2WD / 4WD/ Front differential locked 4WD. C.V.T with Reverse and 2 Speed Sub-Transmission.
Fuel controlDouble Overhead Cams/Twin Cam (DOHC)
Compression11.6:1
Top speed105.0 km/h (65.2 mph)
Torque33.00 Nm (3.4 kgf-m or 24.3 ft.lbs) @ 3400 RPM
Power19.44 HP (14.2 kW) @ 4700 RPM
Capacity:448.00 ccm (27.34 cubic inches)
Color optionsRed/black
StarterKick

Performance Profile & Rider Fit

Best For

Track5%
City5%
Cornering40%
Daily Riding5%
Touring2%
Passenger0%

Rider Profile

Best ForThis is a children's youth trial bike intended for young beginners just starting to learn balance and clutch-free control, not for licensed road riders.
PurposeIt exists purely for teaching kids the fundamentals of trials riding over obstacles, rocks, and technical low-speed terrain in a controlled, safe environment.
Rider FitIts tiny 42kg dry weight and 600mm seat height make it manageable for small children, requiring minimal strength but active standing balance and body positioning.
CharacterIt behaves like a miniature version of a full-size trials machine, with a soft automatic clutch and two-speed gearbox designed to build core off-road skills without overwhelming a young rider.
Not Ideal ForThis bike is not suitable for adults, road use, highway travel, or anyone seeking speed, passenger capacity, or long-distance comfort.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Reviews

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