Harley-Davidson Street 750 Dark Custom - 2018 Specifications and Reviews

The 2018 Harley-Davidson Street 750 Dark Custom targets new and returning riders seeking an accessible, stylish cruiser. Known for its aggressive dark aesthetic, low seat height, and manageable weight, it delivers classic Harley character in an approachable package. The blacked-out two-into-one exhaust and 7-spoke wheels emphasize its contemporary edge.

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General information

CategoryCustom / cruiser
Year2018
ModelHarley-Davidson Street 750 Dark Custom

Engine and Transmission Specifications

Exhaust systemBlack two- into-one
Greenhouse gases109.0 CO2 g/km. (CO2 - Carbon dioxide emission)
Fuel consumption4.70 litres/100 km (21.3 km/l or 50.05 mpg)
DrivelineGear, 36/68 ratio primary drive
ClutchMulti-plate with diaphragm spring in oil bath
Transmission type,final driveBelt
Gearbox6-speed
Cooling systemLiquid
Fuel controlSingle Overhead Cams (SOHC)
Fuel systemInjection. Mikuni Single Port Fuel Injection, 38 mm bore.
Valves per cylinder4
Bore x Stroke85.0 x 66.0 mm (3.3 x 2.6 inches)
Compression11.0:1
Torque60.34 Nm (6.2 kgf-m or 44.5 ft.lbs) @ 4000 RPM
Power58.00 HP (42.3 kW) @ 8000 RPM
Engine detailsRevolution X engine
Engine typeV2, four-stroke
 
 

Brakes, suspension, Frame and wheels

WheelsBlack, 7-Spoke Cast Aluminum
Rear brakesSingle disc. 2-piston floated front and rear, optional ABS
Front brakesSingle disc. 2-piston floated front and rear, optional ABS
Rear tyre140/75-R15
Front tyre100/80-R17
Rear SuspensionTwin shocks
Front SuspensionTelescopic fork
Trail115 mm (4.5 inches)
Rake (fork angle)32.0°

Physical measures and capacities

Oil capacity3.10 litres (0.20 quarts)
Fuel capacity13.10 litres (3.46 gallons)
Wheelbase1,534 mm (60.4 inches)
Ground clearance145 mm (5.7 inches)
Overall length2,225 mm (87.6 inches)
Seat height653 mm (25.7 inches) If adjustable, lowest setting.
Power/weight ratio0.2601 HP/kg
Weight incl. oil, gas, etc229.0 kg (504.9 pounds)
Dry weight223.0 kg (491.6 pounds)
 
 

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
LightHigh beam, neutral, low oil pressure, turn signals, engine diagnostics, low fuel warning
Instruments3.5 inch electronic speedometer with high beam, neutral, low oil pressure, turn signals, engine diagnostics, low fuel warning, blade key ignition and fork lock, and locking gas cap
StarterElectric
Color optionsVivid Black, Black Denim, Velocity Red Sunglo, Superior Blue, Velocity Red Sunglo Deluxe, Vivid Black Deluxe

Performance Profile & Rider Fit

58 hp
Peak Power
5.8s
0-60 mph

Best For

Track15%
City70%
Cornering40%
Daily Riding60%
Touring30%
Passenger35%

Rider Profile

Best ForThis bike suits beginner to intermediate riders who want an approachable, low-slung cruiser without intimidating power.
PurposeIt's built for relaxed urban cruising and short weekend rides rather than outright speed or long-distance touring.
Rider FitThe low seat height and light dry weight make it easy to handle for shorter riders or those less confident with heavier machines.
CharacterIt has a laid-back, torquey V-twin cruiser feel with classic Harley styling and a relaxed, unhurried riding position.
Not Ideal ForIt's not a good fit for riders seeking high speed thrills, aggressive cornering, or serious off-road capability.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2018 Harley-Davidson Street 750 Dark Custom Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 653mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2018 Harley-Davidson Street 750 Dark Custom, with a cramped knee angle of around 70 degrees and an upright riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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Rider Reviews

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MotorcycleDB Review

The 2018 Harley-Davidson Street 750 Dark Custom motorcycle is a stylish and sleek bike that offers a smooth and comfortable ride. The blacked-out design gives it an edgy and modern look that is sure to turn heads on the road. With its responsive handling and powerful engine, this motorcycle is perfect for urban commuting and weekend adventures. The Street 750 Dark Custom is equipped with a liquid-cooled Revolution X V-Twin engine, delivering strong and consistent power. Its lightweight frame and low seat height make it easy to handle for riders of all experience levels. Overall, the 2018 Harley-Davidson Street 750 Dark Custom is a well-crafted and reliable motorcycle that offers a great riding experience for any enthusiast.
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