These are the known mechanical and performance specifications for your 2014 Sym GTS Joymax 250i evo.
Basic Specs

Engine
Displacement250.60 ccm (15.29 cubic inches)
TypeElectroplated ceramic cylinder
DetailsSingle cylinder, four-stroke
Max RPM
Compression
Bore/Stroke
Valves/Cylinder4
FuelingInjection. EFI
Ignition
Exhaust
Lubrication
CoolingLiquid
Performance
Horespower23.07 HP (16.8 kW)
Torque22.70 Nm (2.3 kgf-m or 16.7 ft.lbs)
Top Speed128.0 km/h (79.5 mph)
Fuel Economy & Polution
Fuel Consumption2.44 litres/100 km (41.0 km/l or 96.40 mpg)
Fuel Capacity12.00 litres (3.17 gallons)
Emissions56.6 CO2 g/km. (CO2 - Carbon dioxide emission)
Chassis
Frame TypeSteel, pipe underbone
Rake
Trail
Front SuspensionTelescopic fork
Front Travel
Rear SuspensionUnit Swing Arm With 5-way Preload
Rear Travel
Seat
Seat Height
Alt. Seat Height
Total Height1,395 mm (54.9 inches)
Total Length2,165 mm (85.2 inches)
Total Width755 mm (29.7 inches)
Ground Clearance
Wheelbase1,495 mm (58.9 inches)
Dry Weight167.0 kg (368.2 pounds)
Wet Weight
Wheels & Brakes
Front Tire/Tyre100/80-12
Rear Tire/Tyre130/70-12
Front BrakesSingle disc
Front Brake Diameter240 mm (9.4 inches)
Rear BrakesSingle disc
Rear Brake Diameter220 mm (8.7 inches)
WheelsAluminium
Comments
Made in Taiwan