Comparison of Aprilia SR 50 R Street 2009 and UM X-Peed 50

Attribute	Aprilia SR 50 R Street 2009 ×	UM X-Peed 50 ×
General
Production from (year)	2009	2006
Make	Aprilia	UM
Model	Aprilia SR 50 R Street	UM X-Peed 50
Category	Scooter	Scooter
Engine and transmission
Engine type	Single cylinder, two-stroke	Single cylinder, two-stroke
Fuel system	Carburettor. 17.5 mm throttle body	-
Displacement (cm³)	49	49.7
Cooling system	Liquid	Air
Transmission type,final drive	Belt	Belt
Bore (mm)	40	40
Stroke (mm)	39.3	39.2
Gearbox	Automatic	Automatic
Ignition	CDI - capacitor discharge ignition	-
Lubrication system	Separate mixing with mechanical oil pump	-
Compression	12.1:1	6.9:1
Chassis
Front suspension	Hydraulic fork	Telescopic fork
Rear suspension	Engine unit acting as swingarm	Monoshock
Front brakes	Single disc	Single disc. ABS system.
Rear brakes	Single disc	Expanding brake (drum brake)
Diameter (mm)	190	216
Frame type	Split single cradle frame in high tensile strength steel tube	-
Front tyre	130/60-13	120/70-12
Rear tyre	130/60-13	120/70-12
Other
Starter	Electric	Electric & kick
Color options	graphite grey tulip red.	black blue copper green red silver yellow
Dimensions
Wheelbase (mm)	1,290	1,245
Dry weight (kg)	-	85
Overall length (mm)	1,860	1,829
Seat height (mm)	820	762
Performance
Reserve fuel capacity (l)	1.2	-
Fuel capacity (l)	7	4.92