| MODEL | TRIUMPH THUNDERBIRD 2017 - 2018 |
| Year | 2017 - 2018 |
| Engine Type | Four stroke, parallel twin, DOHC, 4 valves per cylinder, 270 degree firing interval |
| Displacement / Capacity | 1597 cc / 97.5 cu in |
| Bore X Stroke | 103.8 x 94.3 mm |
| Compression Ratio | 9.7:1 |
| Cooling System | Liquid cooled |
| Max Power | 64 kW / 86 hp @ 4850 rpm |
| Max Torque | 146 Nm / 107.7 ft-lb @ 2750 rpm |
| Ignition | Digital inductive type via electronic engine management |
| Induction | Multipoint sequential electronic fuel injection with SAI, progressive throttle linkage |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | Wet sump |
| Gear Box | 6 speed |
| Clutch | Wet, multi-plate |
| Final Drive | Toothed belt |
| CHASSIS SPECS | |
| Frame | Tubular steel, twin spine, twin-sided steel swingarm |
| Front Suspension | Showa 47 mm forks, 120 mm / 4.7 in travel |
| Rear Suspension | Showa chromed spring twin shocks, 5 position adjustable preload, 95 mm / 3.7 in travel |
| Front Brakes | 2 x 310 mm floating discs, Nissin 4 piston fixed calipers, ABS |
| Rear Brakes | Single 310 mm fixed disc, Brembo 2 piston floating caliper, ABS |
| DIMENSION SPECS | |
| Overall Length | 2340 mm / 92.1 in |
| Overall Width | 800 mm / 34.6 in (handlebars) |
| Overall Height | 1120 mm / 44.1 in |
| Seat Height | 702 mm / 27.6 in |
| Wheelbase | 1615 mm / 63.5 in |
| Ground Clearance | — |
| Dry Weight | 308 kg / 679 lbs |
| Wet Weight | 339 kg / 747 lbs |
| WHEEL SPECS | |
| Front Tyre | 120/70 R19 |
| Rear Tyre | 200/50 R17 |
| FUEL SYSTEM | |
| Fuel Capacity | 22 Litres / 5.8 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The base Thunderbird was Triumph's big parallel-twin cruiser with a long, low stance, teardrop tank, wide rear tyre and belt drive. This page lists the original 1597 cc engine rather than the later 1700 cc unit. It was aimed at relaxed riding with a very low seat.
