Comparison of UM GP1-R 125 and Vespa S 150 2009

Attribute	Vespa S 150 2009 ×	UM GP1-R 125 ×
General
Production from (year)	2009	2010
Make	Vespa	UM
Model	Vespa S 150	UM GP1-R 125
Category	Scooter	Scooter
Engine and transmission
Engine type	Single cylinder, four-stroke	Single cylinder, four-stroke
Valves per cylinder	2	-
Fuel system	Injection	Carburettor
Displacement (cm³)	150	124.5
Power (kw)	8.5	-
Cooling system	Air	Air
Transmission type,final drive	Belt	Belt
Torque (Nm)	11.5	-
Bore (mm)	62.5	52.4
Stroke (mm)	48.5	57.8
Gearbox	Automatic	Automatic
Fuel control	Single Overhead Cams (SOHC)	Single Overhead Cams (SOHC)
Ignition	Electric and kick start	-
Clutch	Automatic dry centrifuge with damper buffers	-
Lubrication system	Wet sump, 850cc capacity; chain-driven lobe pump; intake and delivery filters	-
Compression	-	9.2:1
Chassis
Front suspension	Single arm with helical spring and dual effect hydraulic single shock absorber	Telescopic Fork
Rear suspension	Coil spring and dual effect single shock absorber	Hydraulic Dual Shock
Front brakes	Single disc	Single disc
Rear brakes	Expanding brake (drum brake)	Expanding brake (drum brake)
Frame type	Load-bearing steel chassis with welded structural supports	-
Front tyre	110/70-11	120/70-12
Rear tyre	120/70-10	120/70-12
Other
Starter	Electric & kick	Electric & kick
Color options	black orange red white	black blue red silver
Dimensions
Wheelbase (mm)	1,280	1,243
Dry weight (kg)	110	98
Power/weight ratio	0.0773	-
Overall length (mm)	1,801	1,827
Seat height (mm)	775	760
Performance
Top speed (km/h)	95	-
Fuel capacity (l)	-	5.6