14 August. Friday 2026
Triumph Rocket III Roadster - 2017 Specifications and Reviews
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.
General information | |
| Category | Custom / cruiser |
| Year | 2017 |
| 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 CO2 g/km. (CO2 - Carbon dioxide emission) |
| 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 | Double Overhead Cams/Twin Cam (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 RPM |
| Power | 148.00 HP (108.0 kW) @ 5750 RPM |
| Engine details | Counter rotating crankshaft |
| Engine type | In-line three, four-stroke |
| | |
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. ABS system. |
| Front brakes diameter | 320 mm (12.6 inches) |
| Front brakes | Double disc. Nissin 4-piston fixed calipers. ABS system. |
| Rear tyre | 240/50-R16 |
| Front tyre | 150/80-R17 |
| Rear wheel travel | 105 mm (4.1 inches) |
| Rear Suspension | Kayaba black spring twin shocks with 5 position adjustable preload. |
| Front wheel travel | 120 mm (4.7 inches) |
| Front Suspension | Kayaba 43 mm upside down forks |
| Trail | 148 mm (5.8 inches) |
| Rake (fork angle) | 32.0° |
| Frame type | Tubular steel, twin spine. Twin-sided, steel swing arm. |
| | |
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. |
| Power/weight ratio | 0.4431 HP/kg |
| Weight incl. oil, gas, etc | 367.0 kg (809.1 pounds) |
| Dry weight | 334.0 kg (736.3 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Factory warranty | 2 year unlimited mileage |
| Starter | Electric |
| Color options | Matt Phantom Black, Phantom Black |
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 Reviews
Total comments: 1
MotorcycleDB Review
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.Add a Comment
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