Comparison of Aprilia RS 50 2013 and Derbi GPR 50 Nude 2009

Attribute	Aprilia RS 50 2013 ×	Derbi GPR 50 Nude 2009 ×
General
Production from (year)	2013	2009
Make	Aprilia	Derbi
Model	Aprilia RS 50	Derbi GPR 50 Nude
Category	Sport	Naked bike
Engine and transmission
Engine type	Single cylinder, two-stroke	Single cylinder, two-stroke
Fuel system	Carburettor. Dell’Orto PHVA - Ø14	Carburettor. 14 mm
Displacement (cm³)	49.9	49
Cooling system	Liquid	Liquid
Transmission type,final drive	Chain	Chain
Bore (mm)	39.9	39.9
Stroke (mm)	40	40
Gearbox	6-speed	6-speed
Fuel control	-	Single Overhead Cams (SOHC)
Emission details	Euro 2	-
Driveline	Primary drive: Gears. Ratio: 21/78. Final drive: Chain. Ratio: 14/53	-
Ignition	Elettronica C.D.I.	C.D.I.
Clutch	Multi-plate	Multi-plate
Lubrication system	Automatic mixer	Oil pump
Compression	11.5:1	11.5:1
Chassis
Front suspension	40 mm upside down fork	40 mm. Upside-down fork.
Rear suspension	Double reinforced member aluminium swingarm with bracing arch	Monoshock.
Front brakes	Single disc. Radial caliper with two 28 mm opposed pistons	Single disc
Rear brakes	Single disc	Single disc
Diameter (mm)	180	180
Frame type	Twin spar aluminium frame	-
Front tyre	110/80-17	100/80-17
Rear tyre	130/70-17	130/70-17
Front wheel travel (mm)	120	110
Rear wheel travel (mm)	110	110
Other
Starter	Electric	Electric
Color options	glam white	red/black white
Electrical Voltage (V)	12	-
Dimensions
Wheelbase (mm)	1,310	1,310
Dry weight (kg)	-	102
Overall height (mm)	1,138	1,116
Overall length (mm)	1,965	1,961
Overall width (mm)	720	720
Seat height (mm)	820	845
Performance
Fuel capacity (l)	13	13
Oil capacity (l)	-	1.5
Battery capacity (Ah)	4	-