Harley-Davidson Fat Boy 30th Anniversary 2020 vs. BMW R 18 2021

Technical Specifications Harley-Davidson Fat Boy 30th Anniversary 2020 compared to BMW R 18 2021

Harley-Davidson Fat Boy 30th Anniversary 2020

BMW R 18 2021

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Differences

Harley-Davidson Fat Boy 30th Anniversary 2020

BMW R 18 2021

Engine and Drive Train

Engine type	Engine type	V	Engine type	Boxer
Bore	Bore	102 mm	Bore	107.1 mm
Stroke	Stroke	114.3 mm	Stroke	100 mm
Engine power	Engine power	94 HP	Engine power	91 HP
Rpm at Max. Power	Rpm at Max. Power	5,020 rpm	Rpm at Max. Power	4,750 rpm
Torque	Torque	155 Nm	Torque	158 Nm
Rpm at Torque	Rpm at Torque	3,000 rpm	Rpm at Torque	3,000 rpm
Compression Ratio	Compression Ratio	10.5	Compression Ratio	9.6
Fuel system	Fuel system	Injection	Fuel system	Injection
Starter	Starter	Electric	Starter	Electric
Clutch Type	Clutch Type	Multiplate in oil-bath	Clutch Type	Toughened, Dry
Transmission	Transmission	Belt	Transmission	Prop shaft
Transmission Type	Transmission Type	Gearshift	Transmission Type	Gearshift
Number of gears	Number of gears	6	Number of gears	6
Cylinders	Cylinders	2	Cylinders	2
Valves	Valves	OHV	Valves	OHV
Cooling	Cooling	Air	Cooling	Oil-air
Displacement	Displacement	1,868 ccm	Displacement	1,802 ccm

Suspension Front

Front suspension	Front suspension	Telescopic fork	Front suspension	Telescopic fork

Chassis

Frame	Frame	Steel	Frame	Steel
Frame type	Frame type	Double cradle	Frame type	Double cradle
Rake	Rake	3 degree	Rake	57.3 degree
Trail	Trail	104 mm	Trail	150 mm

Brakes Front

Type	Type	Single disk	Type	Double disk

Brakes Rear

Type	Type	Disc	Type	Disc

Dimensions and Weights

Front tyre width	Front tyre width	160 mm	Front tyre width	120 mm
Front tyre height	Front tyre height	60 %	Front tyre height	70 %
Front tyre diameter	Front tyre diameter	18 inch	Front tyre diameter	19 inch
Rear tyre width	Rear tyre width	240 mm	Rear tyre width	180 mm
Rear tyre height	Rear tyre height	40 %	Rear tyre height	65 %
Rear tyre diameter	Rear tyre diameter	18 inch	Rear tyre diameter	16 inch
Length	Length	2,370 mm	Length	2,440 mm
Wheelbase	Wheelbase	1,665 mm	Wheelbase	1,731 mm
Seat Height	Seat Height	675 mm	Seat Height	690 mm
Fuel Tank Capacity	Fuel Tank Capacity	18.9 l	Fuel Tank Capacity	16 l
License compliancy	License compliancy	A	License compliancy	A