| MODEL | TRIUMPH ROCKET III ROADSTER 2017 - 2019 |
| Year | 2017 - 2019 |
| Engine Type | Four-stroke, liquid-cooled, 3-cylinder, DOHC |
| Displacement / Capacity | 2294 cc / 140 cu in |
| Bore X Stroke | 101.6 x 94.3 mm |
| Compression Ratio | 8.7:1 |
| Cooling System | Liquid cooled |
| Max Power | 109 kW / 146 hp @ 5750 rpm |
| Max Torque | 221 Nm / 163 ft-lb @ 3300 rpm |
| Ignition | Digital inductive via electronic engine management |
| Induction | Multipoint sequential electronic fuel injection, twin butterflies |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | Wet sump |
| Gear Box | 5 Speed |
| Clutch | Wet, multi-plate |
| Final Drive | Shaft |
| CHASSIS SPECS | |
| Frame | Tubular steel, twin spine |
| Front Suspension | 43 mm upside-down forks, 120 mm / 4.7 in travel |
| Rear Suspension | Twin shocks, 5-position adjustable preload, 105 mm / 4.1 in travel |
| Front Brakes | 2 x 320 mm floating discs, 4-piston calipers, ABS |
| Rear Brakes | Single 316 mm disc, 2-piston floating caliper, ABS |
| DIMENSION SPECS | |
| Overall Length | 2500 mm / 98.4 in |
| Overall Width | 970 mm / 38.2 in |
| Overall Height | 1165 mm / 45.8 in |
| Seat Height | 750 mm / 29.5 in |
| Wheelbase | 1695 mm / 66.7 in |
| Ground Clearance | — |
| Dry Weight | 320 kg / 704 lb |
| Wet Weight | 367 kg / 807 lb |
| WHEEL SPECS | |
| Front Tyre | 150/80 V17 |
| Rear Tyre | 250/50 V16 |
| FUEL SYSTEM | |
| Fuel Capacity | 24 Litres / 6.3 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The Roadster is the more upright, performance-oriented Rocket III, built around the 2.3-litre triple that was the largest-capacity production motorcycle engine of its time. Compared with the Touring it has a 17 in front wheel and a very wide 250-section rear tyre, with ABS fitted as standard. It also makes noticeably more power and torque than the Touring, and handles more agilely than its size suggests. The listed figures are the same as the 2015-16 bikes.
