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Cruisers

2017Triumph Rocket III Roadster

★ 5.0

49 fields on record

The 2017 Triumph Rocket III Roadster is a heavyweight cruiser designed for riders seeking commanding presence and relaxed riding position. Known for its massive 2,294cc triple engine delivering impressive low-end torque, it excels at leisurely cruising and highway touring with its generous seat height and stable geometry. Its robust braking system and proven reliability make it ideal for experienced cruiser enthusiasts prioritizing comfort over sport performance.

Capacity: 2294.0 ccm
Engine: In-line three-cylinder, four-stroke
Gearbox: 5-speed
Dry weight: 334.0 kg
Seat height: 750 mm
Power: 148.0 HP (108.0 kW) @ 5750 RPM

⇄ Compare with another bike ＋ Add to garage All model years

Other years 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail5%

Cornering45%

City riding45%

Daily riding65%

Touring65%

Two-up70%

Track25%

Best for: Built as a muscular power-cruiser, it delivers brutal straight-line acceleration and effortless overtaking rather than nimble cornering ability.
Built for: The Rocket III Roadster has a dominant, torque-drenched personality that rewards relaxed, throttle-driven riding over aggressive lean-angle attacks.
Not ideal for: This is not the right bike for new riders, tight urban commuting, or anyone seeking a light, flickable machine for twisty backroads.

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 750mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2017 Triumph Rocket III Roadster, with a relaxed knee angle of around 130 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 →

Range and running costs

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Units

Currency

Fuel per litre

Riding a year

Based on the maker's published fuel consumption and tank size. Official figures come from a gentle lab test - most riders use 10-30% more fuel than this, so expect less range in real riding, and the last litres of a tank are reserve. Prices shown greyed are examples - type your own.

Reliability & safety

Bike Reliability score, safety recalls and owner complaints

US owner complaints

None filed for 2017 · 2 across all years

No US owner complaints are on record for the 2017 model; owners of other years of the Triumph Rocket III Roadster have filed 2.

Source: NHTSA owner complaints (United States). These are unverified reports from owners, not confirmed defects — a handful is normal for a popular model.

Bike Reliability

How the score works →

out of 100Excellent

The Triumph Rocket III Roadster passed its annual roadworthiness test first time 89.3% of the time, 7.1 points above expected for bikes of the same age and mileage. That beats 83% of models.

This covers every year of the model.

Test records don't say which version a bike is, so this covers Triumph Rocket III Roadster / Triumph Rocket III Touring together.

89.3%Passed first time

5.0%Failed outright

5.7%Fixed during test

10,000Typical miles

1,730Tests

Pass rate by miles ridden

0-10k

91.4%

10-20k

87.5%

20-30k

86.2%

30-40k

89.4%

All years of this model.

Against its rivals · ranks 4 of 6

#	Model (all years)	Score	Tests
1	Indian Chief	95 Excellent	826
2	Indian Chief Dark Horse	93 Excellent	282
3	Harley-Davidson Fat Boy	83 Excellent	6,083
4	Triumph Rocket III Roadster	83 Excellent	1,730
5	Harley-Davidson Softail Slim	76 Good	2,367
6	Harley-Davidson Sportster Forty-Eight	73 Good	1,854

Rivals are the most-viewed bikes on MotorcycleDB in the same category and engine size, from within three years of this model.

From British annual roadworthiness tests, 2005-2025. Contains public sector information licensed under the Open Government Licence v3.0 (DVSA MOT test data, Great Britain). How Bike Reliability works.

Full specifications

Engine

Capacity: 2294.0 ccm
Power: 148.0 HP (108.0 kW) @ 5750 RPM
CO2 Emissions: 190 CO2 g/km
EPA Certificate No.: HTDXC2.30VJM-012
EPA Est. Fuel Consumption: 8.09 L/100km (29.1 US mpg)
EPA CO Emissions: 7.9 CO g/km
Torque: 221.0 Nm (22.5 kgf-m) @ 2750 RPM
Engine type: In-line three-cylinder, four-stroke
Fuel consumption: 8.10 litres/100 km (12.3 km/l)
Power/weight ratio: 0.4431 HP/kg (dry)
Bore x stroke: 101.6 x 101.6 mm
Compression: 8.7:1
Cooling system: Liquid
Fuel system: Injection
Starting: Electric
Ignition: Digital-inductive type via engine management system
Aspiration: Naturally aspirated
Valves per cylinder: 4

Transmission

Gearbox: 5-speed
Transmission type: Manual
Final drive: Shaft
Clutch: Wet. multi-plate

Dimensions & weight

Wheelbase: 1695 mm
Overall length: 2500 mm
Overall width: 970 mm
Overall height: 1165 mm
Seat height: 750 mm
Dry weight: 334.0 kg
Wet weight: 367.0 kg
Fuel capacity: 24.00 litres

Chassis & suspension

Frame: Tubular steel, twin spine. Twin-sided, steel swing arm.
Front suspension: Kayaba 43 mm upside down forks
Rear suspension: Kayaba black spring twin shocks with 5 position adjustable preload.
Front wheel travel: 120 mm
Rear wheel travel: 105 mm
Rake (fork angle): 32.0°
Trail: 148 mm

Brakes & wheels

Front brakes: Double disc. Nissin 4-piston fixed calipers. ABS system.
Front brakes diameter: 320 mm
Rear brakes: Single disc. Nissin 4-piston fixed calipers. ABS system.
Rear brakes diameter: 316 mm
ABS: Yes
Front tyre: 150/80-R17
Rear tyre: 240/50-R16

Maintenance

Oil capacity: 5.90 litres

Other

Color options: Matt Phantom Black, Phantom Black
Warranty: 24
Fuel Tank Material: Metal

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	2010	2012	2015	2017	2019
Capacity	2294 cc	2294 cc	2294 cc	2294 cc	2294 cc
Dry weight	320 kg	327 kg	334 kg	334 kg	334 kg
Seat height	750 mm	750 mm	750 mm	750 mm	750 mm
Fuel capacity	24 L	24 L	24 L	24 L	24 L

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

Rider Reviews

5.0

★★★★★

Rider rating

MotorcycleDB

The 2017 Triumph Rocket III Roadster is a powerful and impressive motorcycle that offers a thrilling riding experience. The massive 2,294cc inline-three engine delivers incredible torque and acceleration, making it one of the most powerful production motorcycles on the market. The bike’s distinctive and aggressive design commands attention while its smooth handling and comfortable ride quality make it a joy to ride on both short trips and long journeys. With its exceptional performance and striking appearance, the Rocket III Roadster is a standout choice for riders who crave power and style.

Overall, the 2017 Triumph Rocket III Roadster is a top-notch motorcycle that exceeds expectations in terms of performance, design, and comfort. Its massive engine, bold styling, and comfortable ride quality make it a standout choice in the cruiser motorcycle segment. Whether you’re a seasoned rider or a newcomer to the world of motorcycles, the Rocket III Roadster is sure to impress with its power, handling, and striking presence on the road. With its combination of raw power and refined design, it’s no wonder the Triumph Rocket III Roadster has earned a reputation as a formidable and exhilarating machine.

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