The Triumph Speed Twin 500 motorcycle was produced from 1938 to 1946, with a four stroke parallel twin engine and a capacity of 498 cc. It had a single Amal carburetor and 6 V magnetic flywheel ignition, and started with a kick. The maximum power was 20.9 kW at 6000 rpm. It featured a wet 6 plate clutch and a 4 speed transmission, with a final drive by chain. The frame was a single tube type and the suspension was rigid, with a leaf spring on the front fork and a spring loaded saddle on the rear. Brakes were drum type on both the front and rear wheels. The tyres were 3.25-19 on the front and 3.50-19 on the rear. The dry weight of the bike was 182 kg and it had a fuel capacity of 18 L. Overall, the Triumph Speed Twin has been noted for its successful combination of style, affordability, and performance during a difficult period of history.
Technical specifications:
Make Model: Triumph Speed Twin 500
| Year | 1938 – 46 |
|---|---|
| Engine | Four stroke, parallel twin, OHV |
| Capacity | 498 cc / 30.4 cub in. |
| Bore x Stroke | 63 x 80 mm |
| Compression Ratio | 7.1:1 |
| Cooling System | Air cooled |
| Induction | Single Amal carburetor |
| Ignition | 6 V, magnetic flywheel |
| Starting | Kick |
| Max Power | 20.9 kW / 28 hp @ 6000 rpm |
| Clutch | Wet, 6 plate |
| Transmission | 4 Speed |
| Final Drive | Chain |
| Frame | Singe tube frame |
| Front Suspension | Rigid fork with leaf spring |
| Rear Suspension | Rigid, spring loaded saddle |
| Front Brakes | Drum |
| Rear Brakes | Drum |
| Front Tyre | 3.25 – 19 |
| Rear Tyre | 3.50 – 19 |
| Dry Weight | 182 kg / 401 lbs |
| Fuel Capacity | 18 L / 4.8 US gal / 4.0 Imp gal |
