Beta RX 450 4T 2024 vs. Beta RR 390 4T Racing 2020

Technical Specifications Beta RX 450 4T 2024 compared to Beta RR 390 4T Racing 2020

Beta RX 450 4T 2024

Beta RR 390 4T Racing 2020

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Differences

Beta RX 450 4T 2024

Beta RR 390 4T Racing 2020

Engine and Drive Train

Bore	Bore	97 mm	Bore	88 mm
Stroke	Stroke	60.8 mm	Stroke	63.4 mm
Compression Ratio	Compression Ratio	13.4	Compression Ratio	12.48
Fuel system	Fuel system	Injection	Fuel system	Carburator
Throttle Bore	Throttle Bore	46 mm	Throttle Bore	42 mm
Starter	Starter	Electric	Starter	Electric
Clutch Type	Clutch Type	Multiplate in oil-bath	Clutch Type	Multiplate in oil-bath
Ignition	Ignition	Kokusan	Ignition	CDI, Kokusan
Transmission	Transmission	Chain	Transmission	Chain
Number of gears	Number of gears	5	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	DOHC	Valves	DOHC
Displacement	Displacement	449.3 ccm	Displacement	385.6 ccm

Suspension Front

Front suspension	Front suspension	Upside-Down telescopic fork	Front suspension	Upside-Down telescopic fork
Diameter	Diameter	48 mm	Diameter	48 mm
Travel	Travel	305 mm	Travel	295 mm

Suspension Rear

Shock absorber	Shock absorber	Monoshock	Shock absorber	Monoshock
Travel	Travel	300 mm	Travel	290 mm

Chassis

Frame	Frame	Chromium-molybdenum	Frame	Steel
Frame type	Frame type	Double cradle	Frame type	Double cradle

Brakes Front

Type	Type	Single disk	Type	Single disk
Diameter	Diameter	260 mm	Diameter	260 mm
Piston	Piston	Double piston	Piston	Double piston
Shock mount	Shock mount	Floating caliper	Shock mount	Floating caliper

Brakes Rear

Type	Type	Disc	Type	Disc
Diameter	Diameter	240 mm	Diameter	240 mm
Piston	Piston	Single piston	Piston	Single piston
Shock mount	Shock mount	Floating caliper	Shock mount	Floating caliper

Dimensions and Weights

Front tyre width	Front tyre width	80 mm	Front tyre width	90 mm
Front tyre height	Front tyre height	100 %	Front tyre height	90 %
Front tyre diameter	Front tyre diameter	21 inch	Front tyre diameter	21 inch
Rear tyre width	Rear tyre width	110 mm	Rear tyre width	140 mm
Rear tyre height	Rear tyre height	90 %	Rear tyre height	80 %
Rear tyre diameter	Rear tyre diameter	19 inch	Rear tyre diameter	18 inch
Width	Width	825 mm	Width	815 mm
Height	Height	1,270 mm	Height	1,270 mm
Wheelbase	Wheelbase	1,485 mm	Wheelbase	1,490 mm
Seat Height	Seat Height	945 mm	Seat Height	940 mm
Dry Weight	Dry Weight	104.5 kg	Dry Weight	107.5 kg
Fuel Tank Capacity	Fuel Tank Capacity	7.01 l	Fuel Tank Capacity	9 l