Aprilia SX 125 2025 vs. Beta RR X-PRO 4T 390 2025

Technical Specifications Aprilia SX 125 2025 compared to Beta RR X-PRO 4T 390 2025

Aprilia SX 125 2025

Beta RR X-PRO 4T 390 2025

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Differences

Aprilia SX 125 2025

Beta RR X-PRO 4T 390 2025

Engine and Drive Train

Bore	Bore	58 mm	Bore	88 mm
Stroke	Stroke	47 mm	Stroke	63.4 mm
Fuel system	Fuel system	Injection	Fuel system	Injection
Starter	Starter	Kick	Starter	Electric
Clutch Type	Clutch Type	Multiplate in oil-bath	Clutch Type	Multiplate in oil-bath
Ignition	Ignition	ECU	Ignition	Kokusan
Transmission	Transmission	Chain	Transmission	Chain
Number of gears	Number of gears	6	Number of gears	6
Cylinders	Cylinders	1	Cylinders	1
Strokes	Strokes	4-Stroke	Strokes	4-Stroke
Valves per cylinder	Valves per cylinder	4	Valves per cylinder	4
Valves	Valves	OHC	Valves	DOHC
Cooling	Cooling	liquid	Cooling	liquid
Displacement	Displacement	124.2 ccm	Displacement	385.6 ccm

Suspension Front

Front suspension	Front suspension	Upside-Down telescopic fork	Front suspension	Upside-Down telescopic fork
Diameter	Diameter	41 mm	Diameter	48 mm
Travel	Travel	240 mm	Travel	295 mm

Suspension Rear

Suspension	Suspension	Swing arm	Suspension	Swing arm
Shock absorber	Shock absorber	Monoshock	Shock absorber	Monoshock
Travel	Travel	210 mm	Travel	290 mm

Brakes Front

Type	Type	Single disk	Type	Single disk
Diameter	Diameter	300 mm	Diameter	260 mm
Piston	Piston	Double piston	Piston	Double piston

Brakes Rear

Type	Type	Disc	Type	Disc
Diameter	Diameter	220 mm	Diameter	240 mm
Piston	Piston	Single piston	Piston	Single piston

Assistance Systems

Advanced Rider Assistance Systems	Advanced Rider Assistance Systems	ABS	Advanced Rider Assistance Systems	Traction control

Dimensions and Weights

Front tyre width	Front tyre width	100 mm	Front tyre width	90 mm
Front tyre height	Front tyre height	80 %	Front tyre height	90 %
Front tyre diameter	Front tyre diameter	17 inch	Front tyre diameter	21 inch
Rear tyre width	Rear tyre width	130 mm	Rear tyre width	140 mm
Rear tyre height	Rear tyre height	70 %	Rear tyre height	80 %
Rear tyre diameter	Rear tyre diameter	17 inch	Rear tyre diameter	18 inch
Length	Length	2,075 mm	Length	2,180 mm
Width	Width	820 mm	Width	830 mm
Height	Height	1,140 mm	Height	1,270 mm
Wheelbase	Wheelbase	1,425 mm	Wheelbase	1,490 mm
Seat Height	Seat Height	880 mm	Seat Height	940 mm
Fuel Tank Capacity	Fuel Tank Capacity	7 l	Fuel Tank Capacity	9 l