Yamaha XT 660X 2009 vs. Beta RR 390 4T Racing 2023

Technical Specifications Yamaha XT 660X 2009 compared to Beta RR 390 4T Racing 2023

Yamaha XT 660X 2009

Beta RR 390 4T Racing 2023

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Differences

Yamaha XT 660X 2009

Beta RR 390 4T Racing 2023

Engine and Drive Train

Bore	Bore	100 mm	Bore	88 mm
Stroke	Stroke	84 mm	Stroke	63.4 mm
Compression Ratio	Compression Ratio	10	Compression Ratio	12.48
Clutch Type	Clutch Type	Multiplate in oil-bath	Clutch Type	Multiplate in oil-bath
Ignition	Ignition	Transistor	Ignition	CDI, Kokusan
Transmission	Transmission	Chain	Transmission	Chain
Number of gears	Number of gears	5	Number of gears	6
Displacement	Displacement	660 ccm	Displacement	385.6 ccm

Suspension Front

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

Brakes Front

Type	Type	Single disk	Type	Single disk

Brakes Rear

Type	Type	Disc	Type	Disc

Dimensions and Weights

Length	Length	2,175 mm	Length	2,180 mm
Width	Width	860 mm	Width	815 mm
Height	Height	1,170 mm	Height	1,270 mm
Wheelbase	Wheelbase	1,490 mm	Wheelbase	1,490 mm
Seat Height	Seat Height	875 mm	Seat Height	940 mm
Dry Weight	Dry Weight	189 kg	Dry Weight	107.5 kg
Fuel Tank Capacity	Fuel Tank Capacity	15 l	Fuel Tank Capacity	9 l