Comparison of Derbi GPR 125 2017 and Derbi Sonar 125 4T 2010

Attribute	Derbi GPR 125 2017 ×	Derbi Sonar 125 4T 2010 ×
General
Production from (year)	2017	2010
Make	Derbi	Derbi
Model	Derbi GPR 125	Derbi Sonar 125 4T
Category	Sport	Scooter
Engine and transmission
Engine type	Single cylinder, four-stroke	Single cylinder, four-stroke
Valves per cylinder	4	-
Fuel system	Carburettor. 30 mm	Carburettor
Displacement (cm³)	124.8	124
Power (kw)	10.9	7.7
Cooling system	Liquid	Air
Transmission type,final drive	Chain	Belt
Torque (Nm)	-	9.6
Bore (mm)	58	57
Stroke (mm)	47	48.6
Gearbox	6-speed	Automatic
Fuel control	Double Overhead Cams/Twin Cam (DOHC)	-
Emission details	Euro 3	-
Ignition	CDI	-
Clutch	Multi-plate	Automatic centrifugal
Lubrication system	Mechanical oil pump	Mechanical oil pump
Compression	12.0:1	10.6:1
Chassis
Front suspension	40 mm upside-down fork	32 mm fork.
Rear suspension	Monoshock.	Single shock absorber
Front brakes	Single disc. Radial caliper	Single disc
Rear brakes	Expanding brake (drum brake). Floating caliper	Expanding brake (drum brake)
Diameter (mm)	218	140
Frame type	Alluminium	-
Front tyre	110/80-17	90/80-16
Rear tyre	130/70-17	110/80-14
Front wheel travel (mm)	110	76
Rear wheel travel (mm)	120	64
Other
Starter	Electric	Electric
Color options	red/white/grey	white
Instruments	Multifunction instrument panel with LCD display inspired by MotoGP.	-
Dimensions
Wheelbase (mm)	1,355	1,325
Kerb weight (kg)	137	109
Dry weight (kg)	120	99
Power/weight ratio	0.0908	0.0778
Overall length (mm)	1,977	1,930
Overall width (mm)	795	740
Seat height (mm)	800	805
Performance
Fuel capacity (l)	14	8