These are the known mechanical and performance specifications for your 2007 Derbi GP1 125.
Basic Specs

Engine
Displacement124.00 ccm (7.57 cubic inches)
Type
DetailsSingle cylinder, four-stroke
Max RPM
Compression10.5:1
Bore/Stroke57.0 x 48.6 mm (2.2 x 1.9 inches)
Valves/Cylinder4
FuelingCarburettor. Keihin CVK 306 B
IgnitionCDI
Exhaust
LubricationOil pump
CoolingLiquid
Fuel Economy & Polution
Fuel Consumption
Fuel Capacity11.00 litres (2.91 gallons)
Emissions
Chassis
Frame Type
Rake
Trail
Front SuspensionUpside down hydraulic fork
Front Travel100 mm (3.9 inches)
Rear SuspensionSingle shock
Rear Travel
Seat
Seat Height
Alt. Seat Height
Total Height1,228 mm (48.3 inches)
Total Length1,850 mm (72.8 inches)
Total Width650 mm (25.6 inches)
Ground Clearance
Wheelbase
Dry Weight110.0 kg (242.5 pounds)
Wet Weight
Wheels & Brakes
Front Tire/Tyre120/70-14
Rear Tire/Tyre140/60-14
Front BrakesSingle disc. Ventilated
Front Brake Diameter245 mm (9.6 inches)
Rear BrakesSingle disc. Ventilated
Rear Brake Diameter240 mm (9.4 inches)
Wheels
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