What category is the 2012 Triumph Rocket III Roadster?

The 2012 Triumph Rocket III Roadster has a Category of Custom / cruiser.

What is the engine size of the 2012 Triumph Rocket III Roadster?

The 2012 Triumph Rocket III Roadster has a Capacity: of 2294.00 ccm (139.98 cubic inches).

What type of engine does the 2012 Triumph Rocket III Roadster have?

The 2012 Triumph Rocket III Roadster has a Engine type of In-line three, four-stroke.

What is the engine power of the 2012 Triumph Rocket III Roadster?

The 2012 Triumph Rocket III Roadster has a Power of 148.00.

What is the torque of the 2012 Triumph Rocket III Roadster?

The 2012 Triumph Rocket III Roadster has a Torque of 221.00 Nm (22.5 kgf-m or 163.0 ft.lbs) @ 2750.

Is the 2012 Triumph Rocket III Roadster air cooled or liquid cooled?

The 2012 Triumph Rocket III Roadster has a Cooling system of Liquid.

How many gears does the 2012 Triumph Rocket III Roadster have?

The 2012 Triumph Rocket III Roadster has a Gearbox of 5-speed.

What is the fuel consumption of the 2012 Triumph Rocket III Roadster?

The 2012 Triumph Rocket III Roadster has a Fuel consumption of 8.11 litres/100 km (12.3 km/l or 29.00 mpg).

How much does the 2012 Triumph Rocket III Roadster weigh?

The 2012 Triumph Rocket III Roadster has a Weight incl. oil, gas, etc of 367.0 kg (809.1 pounds).

What is the seat height of the 2012 Triumph Rocket III Roadster?

The 2012 Triumph Rocket III Roadster has a Seat height of 750 mm (29.5 inches) If adjustable, lowest setting..

Triumph Rocket III Roadster - 2012 Specifications and Reviews

Name: 2012 Triumph Rocket III Roadster
Brand: Triumph
Rating: 3.3 (3 reviews)

The 2012 Triumph Rocket III Roadster is a heavyweight cruiser powered by an exceptional 2294cc triple-cylinder engine delivering 148 horsepower and 221 Nm of torque, making it ideal for riders seeking raw power and commanding presence. Known for its unique three-cylinder character and shaft-driven reliability, this muscle cruiser excels at both highway cruising and commanding attention. Its responsive engine and composed handling make it approachable for experienced riders despite its imposing specifications.

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General information
Category	Custom / cruiser
Year	2012
Model	Triumph Rocket III Roadster

Engine and Transmission Specifications
Exhaust system	Stainless steel 3 into 1 into 2. large volume catalysts in front of chrome-plated exhaust
Greenhouse gases	188.2 CO
Fuel consumption	8.11 litres/100 km (12.3 km/l or 29.00 mpg)
Clutch	Wet. multi-plate
Transmission type,final drive	Shaft drive (cardan)
Gearbox	5-speed
Cooling system	Liquid
Ignition	Digital-inductive type via engine management system
Fuel control	DOHC
Fuel system	Injection. Multipoint sequential electronic fuel injection with twin butterflies and progressive linkage on primary butterflies
Bore x stroke	101.6 x 101.6 mm (4.0 x 4.0 inches)
Compression	8.7:1
Torque	221.00 Nm (22.5 kgf-m or 163.0 ft.lbs) @ 2750
Power	148.00
Engine type	In-line three, four-stroke
Capacity:	2294.00 ccm (139.98 cubic inches)
Brakes, suspension, Frame and wheels
Wheels	Cast aluminum alloy 5 spoke
Rear brakes diameter	316 mm (12.4 inches)
Rear brakes	Single disc. Nissin 4-piston fixed calipers, Nissin ABS system.
Front brakes diameter	320 mm (12.6 inches)
Front brakes	Double disc. Nissin 4-piston fixed calipers, Nissin ABS system.
Rear tyre dimensions	240/50-R16
Front tyre dimensions	150/80-R17
Rear suspension	Kayaba black spring twin shocks with 5 position adjustable preload. 105mm wheel travel
Front suspension	Kayaba 43mm upside down forks. 120mm travel
Rake (fork angle)	32.0°
Frame type	Tubular steel. twin spine

Physical measures and capacities
Oil capacity	5.90 litres (0.39 quarts)
Fuel capacity	24.00 litres (6.34 gallons)
Wheelbase	1,695 mm (66.7 inches)
Overall width	970 mm (38.2 inches)
Overall length	2,500 mm (98.4 inches)
Overall height	1,165 mm (45.9 inches)
Seat height	750 mm (29.5 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc	367.0 kg (809.1 pounds)
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay
Color options	Phantom Black
Starter	Electric

Performance Profile & Rider Fit

148 hp

Peak Power

3.4s

0-60 mph

Best For

Track25%

City45%

Cornering45%

Daily Riding65%

Touring65%

Passenger70%

Rider Profile

Best For	This is a machine best suited to experienced riders who are confident managing enormous low-end torque and substantial weight at low speeds.
Purpose	Built as a muscular power-cruiser, it delivers brutal straight-line acceleration and effortless overtaking rather than nimble cornering ability.
Rider Fit	At 334 kg dry with a low seat height, it is manageable once rolling but demands strength and confidence during slow maneuvers, parking, and U-turns.
Character	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.

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

Rider Fit Visualizer

2012 Triumph Rocket III Roadster Rider Ergonomics Assessment

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Inseam (optional)

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Feet:

At 750mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2012 Triumph Rocket III Roadster, with a cramped knee angle of around 85 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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