| MODEL | TRIUMPH TIGER 90 1937 - 1940 |
| Year | 1937 - 1940 |
| Engine Type | Four stroke, single cylinder, pushrod OHV, 2 valves |
| Displacement / Capacity | 497 cc / 30.3 cu in |
| Bore X Stroke | 84 x 89 mm |
| Compression Ratio | 7.5:1 |
| Cooling System | Air cooled |
| Max Power | 18 kW / 24 hp |
| Max Torque | — |
| Ignition | — |
| Induction | Carburettor |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 4 speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Single downtube, tubular steel cradle |
| Front Suspension | Girder fork with adjustable friction damping |
| Rear Suspension | Rigid, spring-loaded saddle |
| Front Brakes | 200 mm single leading shoe drum |
| Rear Brakes | 200 mm single leading shoe drum |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | 166 kg / 366 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 20 in wheel (chrome, spoked) |
| Rear Tyre | 19 in wheel (chrome, spoked) |
| FUEL SYSTEM | |
| Fuel Capacity | 14.8 Litres / 3.9 US gal |
| Fuel Consumption | — |
| Top Speed | 140 km/h / 87 mph |
The Tiger 90 was the 500 cc overhead-valve single at the top of Triumph's pre-war Tiger singles. It was finished in silver sheen with chrome and blue pinstriping, and shared the improved frame, fork and engine updates of the 1937 range.
