2018 Harley-Davidson Street 750 Specifications

Name: 2018 Harley-Davidson Street 750
Brand: Harley-Davidson

Custom / cruiser • Specs last verified 13 July 2026

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2018 Harley-Davidson Street 750 Overview

The 2018 Harley-Davidson Street 750 is a custom / cruiser motorcycle. Under the tank sits a V2, four-stroke engine running Single Overhead Cams (SOHC) valve actuation, a compression ratio of 11.0:1. The bore and stroke measures 85 x 66 mm. 2018 Harley-Davidson Street 750 delivers 60.34 Nm @ 4000 Revolutions of torque. From a practical standpoint, the 2018 Street 750 tips the scales at 229 kg, carries a 13.10-litre fuel tank, offers a seat height of 653 mm and spans a 1,534 mm wheelbase. That's roughly 71.6 kg lighter than the average custom / cruiser motorcycle in our database. Scroll down for the complete 2018 Harley-Davidson Street 750 spec sheet covering every technical detail from suspension travel to tyre sizes.

2018 Street 750 - Pros & Cons

Strengths

Fuel injection: The fuel injection system delivers crisp throttle response and reliable cold starts regardless of altitude or temperature.
Accessible seat height: At 653 mm, the seat height is approachable for a wide range of rider heights and builds confidence in low-speed manoeuvring.
Low-maintenance final drive: Belt final drive means no chain to clean, lube or adjust - meaningfully less routine maintenance than a chain-driven equivalent.

Considerations

Age-related wear: As with any used Street 750, a thorough pre-purchase inspection covering consumables, service history and tyres is always recommended.

Wear Points & Servicing Notes

Fuelling & injector care

Fuelling comes from fuel injection. Systems like this are largely maintenance-free beyond keeping fuel quality decent and injectors clear - a fuel-system cleaner every service interval is cheap insurance.

Valve clearance checks

Single Overhead Cams (SOHC) valve actuation on the Street 750 means clearances should be checked at the manufacturer's specified interval - they can tighten as mileage accumulates, and a light top-end tick is usually the first sign.

Brake disc and pad wear

The Single disc. 2-piston floated front and rear, optional ABS front brake gives strong, progressive stopping power. Disc thickness and pad depth are worth checking at every tyre change, since worn pads can score the disc surface.

Suspension condition on used examples

Up front, the Street 750 runs Telescopic fork and Twin shocks at the rear. On a used example, check fork seals for weeping oil and test the rear linkage for play - seals are a relatively cheap fix but useful when negotiating price.

Final drive maintenance

Final drive is by belt - lower maintenance than chain with no lubrication needed, but tension and tooth wear should still be checked at service intervals.

Handling the weight at a standstill

At 229 kg, the Street 750 is a substantial machine - low-speed manoeuvring in car parks takes more physical effort than on a lighter bike, though the weight disappears once rolling.

Street 750 - Buying & Maintenance Guide

What to check before buying

When inspecting a used 2018 Harley-Davidson Street 750, start with the basics: check the service book for oil change frequency, inspect the chain and sprockets for wear, and look for oil seepage around the engine casings and rocker covers. A cold start test is invaluable - a well-maintained Street 750 should fire up cleanly and settle to a smooth idle within a few seconds.

Oil and filter changes

Regular oil changes are the single most important maintenance task on any Street 750. Stick to the manufacturer's interval - typically every 6,000 km or once a year, whichever comes first. The sump holds 3.10 litres, so budget for that volume of quality motorcycle-specific engine oil. Always use the correct viscosity grade as specified in the owner's manual.

Fuel system care

The Street 750's fuel injection system is durable but benefits from quality fuel and the occasional use of a fuel-system cleaner additive. If the bike has been stored for more than three months, drain and replace the fuel to prevent varnish deposits in the injectors.

Valve clearance service

Check that valve clearances have been adjusted at the correct intervals on any used Street 750. A bike with clearances out of spec doesn't always feel obviously wrong - but tight clearances accelerate valve seat wear. Ask for service documentation proving it's been done.

2018 Harley-Davidson Street 750 - Frequently Asked Questions

What engine does the 2018 Harley-Davidson Street 750 have?

The 2018 Harley-Davidson Street 750 is powered by a V2, four-stroke engine.

How much does the 2018 Harley-Davidson Street 750 weigh?

The 2018 Harley-Davidson Street 750 weighs 229 kg. This is the manufacturer's wet figure.

How much power does the 2018 Harley-Davidson Street 750 make?

The 2018 Harley-Davidson Street 750 produces 60.34 Nm @ 4000 Revolutions of torque.

What is the fuel tank capacity of the 2018 Harley-Davidson Street 750?

The 2018 Harley-Davidson Street 750 has a 13.10-litre fuel tank. At around 5-6 litres per 100 km, that is roughly 218-262 km between stops.

Is the 2018 Harley-Davidson Street 750 suitable for shorter riders?

The 2018 Harley-Davidson Street 750 has a seat height of 653 mm. This is a comfortable, accessible height for most riders.

What brakes does the 2018 Harley-Davidson Street 750 have?

The 2018 Harley-Davidson Street 750 uses Single disc. 2-piston floated front and rear, optional ABS at the front and Single disc. 2-piston floated front and rear, optional ABS at the rear.

What tyre sizes does the 2018 Harley-Davidson Street 750 use?

The 2018 Harley-Davidson Street 750 runs 100/80-R17 front and 140/75-R15 rear tyres. A good selection of sport, touring and all-weather rubber is available in these sizes.

How much oil does the 2018 Harley-Davidson Street 750 take?

The 2018 Harley-Davidson Street 750 takes 3.10 litres of engine oil at a full oil and filter change. Always verify against the dipstick or sight glass after filling.

Harley-Davidson Street 750 Spec Evolution

The Harley-Davidson Street 750 was produced across 6 model years (2015-2020). The table below highlights the key specifications that changed across the production run - useful whether you are comparing years or tracking down a specific variant.

Specification	2015	2016	2017	2018	2019	2020
Wet Weight	221.8 kg / 489.0 lbs	221.8 kg / 489.0 lbs	229.0 kg / 504.9 lbs	229.0 kg / 504.9 lbs	233.2 kg / 514.0 lbs	233.2 kg / 514.0 lbs
Dry Weight	206.4 kg / 455.0 lbs	206.4 kg / 455.0 lbs	223 kg / 491.6 lbs	223 kg / 491.6 lbs	223 kg / 491.6 lbs	223 kg / 491.6 lbs
Engine Detail	Liquid-cooled, Revolution X? V-Twin	Revolution X engine	Revolution X engine	Revolution X engine	Liquid-cooled, Revolution X™ V-Twin	Blacked-out Revolution X™ engine
Seat Height	653 mm / 25.7 in.	653 mm / 25.7 in.	653 mm / 25.7 in.	653 mm / 25.7 in.	720 mm / 28.3 in.	653 mm / 25.7 in.
Fuel Capacity	13.25 litres / 3.50 gallons	13.25 litres / 3.50 gallons	13.10 litres / 3.46 gallons	13.10 litres / 3.46 gallons	13.10 litres / 3.46 US gallons	13.10 litres / 3.46 US gallons
Oil Capacity (Quarts)	0.20 quarts	0.20 quarts	0.20 quarts	0.20 quarts	3.28 US quarts	3.28 US quarts
CO2	109.0 CO2 g/km. (CO2 - Carbon dioxide emission)	109.0 CO2 g/km. (CO2 - Carbon dioxide emission)	109.0 CO2 g/km. (CO2 - Carbon dioxide emission)	109.0 CO2 g/km. (CO2 - Carbon dioxide emission)	99.3 CO2 g/km. (CO2 - Carbon dioxide emission)	99.3 CO2 g/km. (CO2 - Carbon dioxide emission)
Bore x Stroke (mm)	85.1 x 66.0 mm	85.1 x 66.0 mm	85.0 x 66.0 mm	85.0 x 66.0 mm	85.0 x 66.0 mm	85.0 x 66.0 mm

Key Specifications

Engine

V2, four-stroke

Power

Not published by manufacturer

Torque

60.34 Nm (6.2 kgf-m or 44.5 ft.lbs) @ 4000 Revolutions

Top Speed

Not published by manufacturer

Weight

229.0 kg / 504.9 lbs

Fuel Capacity

13.10 litres / 3.46 gallons

Full 2018 Harley-Davidson Street 750 Specifications

Colours Vivid Black, Black Denim, Wicked Red, Bonneville Salt Pearl, Vivid Black Deluxe, Wicked Red Deluxe, Bonneville Salt Pearl Deluxe

Ground Clearance (in.) 5.7 inches

Ground Clearance (mm) 145 mm

Seat Height 653 mm / 25.7 in.

Wheelbase 1,534 mm / 60.4 in.

Length 2,225 mm / 87.6 in.

Oil Capacity (l) 3.10 litres

Oil Capacity (Quarts) 0.20 quarts

Dry Weight 223 kg / 491.6 lbs

Fuel Capacity 13.10 litres / 3.46 gallons

Wet Weight 229.0 kg / 504.9 lbs

Max Torque 60.34 Nm (6.2 kgf-m or 44.5 ft.lbs) @ 4000 Revolutions

Power-to-Weight Ratio 0.2601 HP/kg

Bore x Stroke (in,) 3.3 x 2.6 inches

Bore x Stroke (mm) 85.0 x 66.0 mm

CO2 109.0 CO2 g/km. (CO2 - Carbon dioxide emission)

Engine Type V2, four-stroke

Fuel Control Single Overhead Cams (SOHC)

Engine Detail Revolution X engine

Fuel System Injection. Mikuni Single Port Fuel Injection, 38 mm bore.

Compression Ratio 11.0:1

Exhaust Black two- into-one

Fuel Consumption 4.70 litres/100 km (21.3 km/l or 50.05 mpg)

Starter Electric

Valve System 4

Clutch Multi-plate with diaphragm spring in oil bath

Final Drive Belt

Gearbox 6-speed

Primary Drive Gear, 36/68 ratio primary drive

Suspension - Front Telescopic fork

Suspension - Rear Twin shocks

Rake 32.0°

Trail 115 mm / 4.5 in.

Instrumentation 3.5 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

Lighting system High beam, neutral, low oil pressure, turn signals, engine diagnostics, low fuel warning

Brakes - Front Single disc. 2-piston floated front and rear, optional ABS

Brakes - Rear Single disc. 2-piston floated front and rear, optional ABS

Rims Black, 7-Spoke Cast Aluminum with Machined Rim Highlights

Tyres - Front 100/80-R17

Tyres - Rear 140/75-R15

Specifications are compiled from manufacturer documentation and cross-referenced technical sources, and corrected on an ongoing basis. Spot an error? Let us know.