BMW R18 Roctane vs Harley-Davidson Street Bob Comparison

From The Experts

Things we like	--	Affordable pricing Excellent ride quality Powerful engine Read More
Things we don't like	--	Kerb weight may feel a little too much for some riders Read More

Engine & Performance

Displacement	1802 cc	1745 cc
Maximum Power	90 hp	--
Fuel Tank Capacity (litres)	16 L	17.8 L
Maximum Torque	158 Nm	145 Nm
No. Of Strokes	4-Stroke	4-Stroke
Valves Per Cylinder	4	4
Compression Ratio	9.6:1	10.0:1
Drive Type	Shaft Drive	Belt Drive
No. Of Cylinder	2	2
Clutch Type	Single Disk Dry Clutch	--
Engine Type	Twin Cylinder, 8 Valves, 4-Stroke, Oil Cooled Engine	2 Cylinder, Air-Cooled, 4-Valve, Milwaukee-Eight
Exhaust Pipes	Dual Exhaust	Dual Exhaust
Cooling System	Liquid Cooled	Air Cooled
Bore X Stroke	107.1 mm x 100 mm	100 mm x 111.1 mm
RPM at Maximum Power	4750 rpm	--
RPM at Maximum Torque	3000 rpm	3000 rpm
Injection Type	--	Indirect Injection
Lubrication System	--	Wet Sump

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Dimension

Category	Cruiser	Cruiser
Wheel Base	1719 mm	1630 mm
Width	982 mm	--
Seat Height	720 mm	680 mm
Seating Capacity	1	1
Length	--	2320 mm
Ground Clearance	--	125 mm
Oil Tank Capacity	--	4.7 L
Dry Weight	--	286 kg

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Fuel & Ignition

Ignition System	Twin-Spark Ignition	CDI
Start Option	Electric	Electric
Fuel Type	Petrol	Petrol
Fuel Supply System	--	EFI

Chassis & Suspension

Front Suspension	Telescopic Fork	Cartridge Fork
Rear Suspension	Swing Arm	Mono Shock

Wheels & Tyres

Front Tyre	120/70 R21	100/90 R19
Tyre Type	Radial, Tubeless	Radial, Tubeless
Rear Tyre	180/55 R16	150/80 R16
Front Wheel Size	R21	R19
Rear Wheel Size	R16	R16

Electrical

Battery Voltage	12 V	12 V
Battery Capacity	26 Ah	--

Gear & Transmission

Gear Box	6-Speed	6-Speed
Transmission Type	Manual	Manual

Safety & Security

ABS	Yes	Yes
Pass Switch	Yes	Yes
Back Rest	No	No
Leg Guards	No	No
Side Reflectors	Yes	Yes
Launch Control	No	No
Engine Check Warning	Yes	Yes
Riding Modes	Road Road	Street, Road Street, Road
Shutter Lock	No	No

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Console

Odometer	Digital Digital	Digital Digital
Speedometer	Analog Analog	Digital Digital
Display Screen	Yes	Yes
Tripmeter	Yes	Yes
Oil Change Indicator	--	Yes
Navigator	--	No

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Brake

Front Brake	Dual Disc Dual Disc	Disc Disc
Rear Brake	Disc Disc	Disc Disc

Chassis & Suspension

Body Frame Type	Double Loop with Bolted Beams Double Loop with Bolted Beams	Stiffer Frame Stiffer Frame
Body Frame Material	Steel Steel	Steel Steel
Side Wings	No	No
Seat Type	Single Seat Single Seat	Single Seat Single Seat

Electrical

Indicator Light	Yes	Yes
Adjustable Headlights	Yes	Yes
Head Lamp	LED LED	LED LED
Tail Lamp	--	LED LED

Differentiating Features

Height Adjustable Seats

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No