Yamaha WR450F 2018 vs. Beta RR 390 2021

Technical Specifications Yamaha WR450F 2018 compared to Beta RR 390 2021

Yamaha WR450F 2018

Beta RR 390 2021

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Differences

Yamaha WR450F 2018

Beta RR 390 2021

Engine and Drive Train

Bore	Bore	97 mm	Bore	88 mm
Stroke	Stroke	60.8 mm	Stroke	63.4 mm
Compression Ratio	Compression Ratio	12.5	Compression Ratio	12.48
Fuel system	Fuel system	Injection	Fuel system	Injection
Starter	Starter	Electric, Kick	Starter	Electric
Clutch Type	Clutch Type	Multiplate in oil-bath	Clutch Type	Multiplate in oil-bath
Ignition	Ignition	CDI	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
Cooling	Cooling	liquid	Cooling	liquid
Displacement	Displacement	449 ccm	Displacement	385.6 ccm

Suspension Front

Front suspension	Front suspension	Upside-Down telescopic fork	Front suspension	Upside-Down telescopic fork
Travel	Travel	310 mm	Travel	295 mm

Suspension Rear

Travel	Travel	318 mm	Travel	290 mm

Chassis

Frame	Frame	Aluminium	Frame	Steel
Frame type	Frame type	Twin Tube	Frame type	Double cradle

Brakes Front

Type	Type	Single disk	Type	Single disk
Diameter	Diameter	270 mm	Diameter	260 mm

Brakes Rear

Type	Type	Disc	Type	Disc
Diameter	Diameter	245 mm	Diameter	240 mm

Dimensions and Weights

Front tyre width	Front tyre width	90 mm	Front tyre width	90 mm
Front tyre height	Front tyre height	90 %	Front tyre height	90 %
Front tyre diameter	Front tyre diameter	21 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	90 %	Rear tyre height	80 %
Rear tyre diameter	Rear tyre diameter	18 inch	Rear tyre diameter	18 inch
Length	Length	2,165 mm	Length	2,180 mm
Width	Width	825 mm	Width	815 mm
Height	Height	1,280 mm	Height	1,270 mm
Wheelbase	Wheelbase	1,465 mm	Wheelbase	1,490 mm
Seat Height	Seat Height	965 mm	Seat Height	940 mm
Fuel Tank Capacity	Fuel Tank Capacity	7.5 l	Fuel Tank Capacity	9 l