These are the known mechanical and performance specifications for your 2016 GAS GAS TXT Pro 80.
Basic Specs

Engine
Displacement79.14 ccm (4.83 cubic inches)
TypeReed valve.
DetailsSingle cylinder, two-stroke
Max RPM
Compression
Bore/Stroke43.0 x 54.5 mm (1.7 x 2.1 inches)
Valves/Cylinder
FuelingCarburettor. Dell´Orto PHBG21DS
Ignition
Exhaust
Lubrication2.5 % Mixture
CoolingLiquid
Drivetrain
Gearbox6-speed
Final DriveChain
ClutchGG 1/3 hydraulic-diaphragm-system
Driveline
Fuel Economy & Polution
Fuel Consumption
Fuel Capacity2.40 litres (0.63 gallons)
Emissions
Chassis
Frame TypeChrom-Molybdenum tubular frame
Rake
Trail
Front Suspension33 mm Aluminium bar diam.
Front Travel180 mm (7.1 inches)
Rear SuspensionOlle hydraulic mono shock
Rear Travel164 mm (6.5 inches)
Seat
Seat Height590 mm (23.2 inches) If adjustable, lowest setting.
Alt. Seat Height
Total Height1,040 mm (40.9 inches)
Total Length1,870 mm (73.6 inches)
Total Width745 mm (29.3 inches)
Ground Clearance
Wheelbase1,300 mm (51.2 inches)
Dry Weight64.0 kg (141.1 pounds)
Wet Weight
Wheels & Brakes
Front Tire/Tyre1.60-19
Rear Tire/Tyre1.85-17
Front BrakesSingle disc. Four-piston calipers.
Front Brake Diameter175 mm (6.9 inches)
Rear BrakesSingle disc. Two-piston calipers.
Rear Brake Diameter150 mm (5.9 inches)
WheelsAluminium rims with spokes


Comments
Spanish made bike.