Aprilia RS4 50 2011 vs. Aprilia RS 125 Racing 2009

Technical Specifications Aprilia RS4 50 2011 compared to Aprilia RS 125 Racing 2009

Aprilia RS4 50 2011

Aprilia RS 125 Racing 2009

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Differences

Aprilia RS4 50 2011

Aprilia RS 125 Racing 2009

Engine and Drive Train

Bore	Bore	39.9 mm	Bore	54 mm
Stroke	Stroke	40 mm	Stroke	54.5 mm
Engine power	Engine power	2.7 HP	Engine power	15 HP
Rpm at Max. Power	Rpm at Max. Power	5,250 rpm	Rpm at Max. Power	8,500 rpm
Transmission	Transmission	Chain	Transmission	Chain
Cylinders	Cylinders	1	Cylinders	1
Strokes	Strokes	2-Stroke	Strokes	2-Stroke
Cooling	Cooling	liquid	Cooling	liquid
Displacement	Displacement	50 ccm	Displacement	125 ccm

Suspension Front

Front suspension	Front suspension	Upside-Down telescopic fork	Front suspension	Upside-Down telescopic fork

Suspension Rear

Shock absorber	Shock absorber	Monoshock	Shock absorber	Monoshock

Brakes Front

Technology	Technology	radial	Technology	radial

Brakes Rear

Type	Type	Disc	Type	Disc

Dimensions and Weights

Front tyre diameter	Front tyre diameter	17 inch	Front tyre diameter	17 inch
Rear tyre diameter	Rear tyre diameter	17 inch	Rear tyre diameter	17 inch
Length	Length	1,968 mm	Length	1,955 mm
Width	Width	760 mm	Width	720 mm
Wheelbase	Wheelbase	1,353 mm	Wheelbase	1,345 mm
Seat Height	Seat Height	810 mm	Seat Height	805 mm
Kerb Weight	Kerb Weight	132 kg	Kerb Weight	137 kg
Fuel Tank Capacity	Fuel Tank Capacity	14 l	Fuel Tank Capacity	14 l
License compliancy	License compliancy	AM	License compliancy	A1