Aprilia RS4 50 2020 vs. Aprilia RS 125 2021

Technical Specifications Aprilia RS4 50 2020 compared to Aprilia RS 125 2021

Aprilia RS4 50 2020

Aprilia RS 125 2021

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Differences

Aprilia RS4 50 2020

Aprilia RS 125 2021

Engine and Drive Train

Bore	Bore	39.9 mm	Bore	58 mm
Stroke	Stroke	40 mm	Stroke	47 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	1,000 rpm
Torque	Torque	3.5 Nm	Torque	11.2 Nm
Rpm at Torque	Rpm at Torque	5,500 rpm	Rpm at Torque	8,000 rpm
Starter	Starter	Electric	Starter	Electric
Clutch Type	Clutch Type	Multiplate in oil-bath	Clutch Type	Multiplate in oil-bath
Transmission	Transmission	Chain	Transmission	Chain
Number of gears	Number of gears	6	Number of gears	6
Cylinders	Cylinders	1	Cylinders	1
Strokes	Strokes	2-Stroke	Strokes	4-Stroke
Cooling	Cooling	liquid	Cooling	liquid
Displacement	Displacement	50 ccm	Displacement	124.2 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

Piston	Piston	Four pistons	Piston	Four pistons
Technology	Technology	radial	Technology	radial

Brakes Rear

Type	Type	Disc	Type	Disc
Piston	Piston	Single piston	Piston	Single piston

Dimensions and Weights

Front tyre width	Front tyre width	100 mm	Front tyre width	100 mm
Front tyre height	Front tyre height	80 %	Front tyre height	80 %
Front tyre diameter	Front tyre diameter	17 inch	Front tyre diameter	17 inch
Rear tyre width	Rear tyre width	130 mm	Rear tyre width	140 mm
Rear tyre height	Rear tyre height	70 %	Rear tyre height	70 %
Rear tyre diameter	Rear tyre diameter	17 inch	Rear tyre diameter	17 inch
Length	Length	1,968 mm	Length	1,968 mm
Width	Width	760 mm	Width	760 mm
Wheelbase	Wheelbase	1,353 mm	Wheelbase	1,350 mm
Seat Height	Seat Height	810 mm	Seat Height	820 mm
Fuel Tank Capacity	Fuel Tank Capacity	14 l	Fuel Tank Capacity	14.5 l
License compliancy	License compliancy	AM	License compliancy	A1