+ Add a photo

Touring Motorcycles

2018Harley-Davidson Tri Glide Ultra

40 fields on record

The 2018 Harley-Davidson Tri Glide Ultra is a three-wheeled cruiser designed for riders seeking maximum comfort and stability on long journeys. Its signature features include a spacious trunk, windshield, cruise control, and low-slung seating that accommodate larger riders and passengers with exceptional carrying capacity. Known for its distinctive trike configuration and smooth Twin Cam engine, it delivers classic Harley character with added security and convenience technology.

Capacity: 1688.0 ccm
Engine: V-Twin, four-stroke
Gearbox: 6-speed
Dry weight: 546.0 kg
Seat height: 735 mm
Power: 87.0 HP (63.5 kW) @ 5450 RPM

⇄ Compare with another bike All model years

What’s new for the 2018 Harley-Davidson Tri Glide Ultra

vs the 2017

Spec	2017	2018
Power	90.0 HP (65.7 kW) @ 5000 RPM	87.0 HP (63.5 kW) @ 5450 RPM
Torque	165.0 Nm (16.8 kgf-m or 121.7 ft.lbs) @ 3250 RPM	152.0 Nm (15.5 kgf-m or 112.1 ft.lbs) @ 3250 RPM

Other years 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail3%

Cornering15%

City riding28%

Daily riding35%

Touring96%

Two-up92%

Track3%

Best for: Built for long-haul two-up touring in maximum comfort, hauling gear in its trunk and top box across highways and open roads.
Built for: A rolling luxury lounge - stable, planted, torque-rich and unhurried, delivering effortless mile-munching with no need to balance or put a foot down.
Not ideal for: Not for anyone chasing agility, canyon carving, track days, tight city filtering, or off-road use; it steers like a car, not a motorcycle.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

Worked out in your browser - nothing is sent to us

Your height

Inseam (optional)

Units

At 735mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2018 Harley-Davidson Tri Glide Ultra, with a cramped knee angle of around 80 degrees and an upright riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 750 mm or under — Short Kings →

Find bikes that fit your height →

Full specifications

Engine

Capacity: 1688.0 ccm
Power: 87.0 HP (63.5 kW) @ 5450 RPM
CO2 Emissions: 149 CO2 g/km
EPA Est. Fuel Consumption: 6.35 L/100km (37.0 US mpg)
EPA CO Emissions: 2.4 CO g/km
Torque: 152.0 Nm (15.5 kgf-m) @ 3250 RPM
Engine type: V-Twin, four-stroke
Fuel consumption: 6.60 litres/100 km (15.2 km/l)
Power/weight ratio: 0.1593 HP/kg (dry)
Bore x stroke: 100.0 x 111.1 mm
Compression: 10.0:1
Cooling system: Air
Fuel system: Injection
Starting: Electric
Aspiration: Naturally aspirated
Valves per cylinder: 4

Transmission

Gearbox: 6-speed
Transmission type: Manual
Final drive: Belt
Clutch: Multi-plate with diaphragm spring in oil bath

Dimensions & weight

Wheelbase: 1670 mm
Overall length: 2675 mm
Seat height: 735 mm
Dry weight: 546.0 kg
Wet weight: 564.0 kg
Fuel capacity: 22.70 litres
Ground clearance: 125 mm
Oil capacity: 4.70 litres
Carrying capacity: Trunk and top box

Chassis & suspension

Front suspension: Telescopic fork
Rake (fork angle): 26.0°
Trail: 100 mm

Brakes & wheels

Front brakes: Double disc. 6 piston.
Rear brakes: Single disc
Front tyre: MT90-B16
Rear tyre: 205/65-R15

Other

Color options: Vivid Black, Black Tempest, Silver Fortune/Sumatra Brown, Twisted Cherry/Silver Fortune, Wicked Red/Twisted Cherry, Legend Blue/Vivid Black
Comments: Trike. Windshield. Cruise control. Alarm. Foot actuated dual parking brake.
Fuel Tank Material: M

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

What changed, year to year

Differences highlighted

Specification	2014	2017	2018	2020	2023	2026
Capacity	1688 cc	1688 cc	1688 cc	1868 cc	1868 cc	1868 cc
Dry weight	535 kg	546 kg	546 kg	546 kg	546 kg	544 kg
Seat height	688 mm	735 mm	735 mm	735 mm	688 mm	688 mm
Fuel capacity	22.7 L	22.7 L	22.7 L	22.7 L	22.7 L	22.7 L

Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.

Rider Reviews

4.8

★★★★★

Rider rating

MotorcycleDB Review

The 2018 Harley-Davidson Tri Glide Ultra is a top-of-the-line three-wheeled motorcycle that offers a smooth and comfortable ride for long-distance touring. Powered by a powerful Milwaukee-Eight 107 engine, this trike delivers strong performance and impressive acceleration. The spacious and luxurious cockpit features a Boom! Box GTS infotainment system, navigation, and ample storage space, making it an ideal choice for long-haul trips. With its iconic Harley-Davidson styling and impeccable build quality, the Tri Glide Ultra is a standout option for riders looking for a reliable and stylish three-wheeled motorcycle.

If you're in the market for a premium three-wheeled motorcycle, the 2018 Harley-Davidson Tri Glide Ultra is a must-see. Its powerful engine, comfortable ride, and high-end features make it a standout option for touring enthusiasts. With its cutting-edge technology and classic design, this trike combines performance with comfort for an unforgettable riding experience. Whether you're cruising down the open road or navigating city streets, the Tri Glide Ultra is a versatile and reliable choice for riders looking for a top-of-the-line touring motorcycle.