| Specification |
Engine: |
Configuration: | Air-cooled overhead valve parallel twin |
Capacity: | 498cc |
Bore x Stroke: | 63mm x 80mm |
Compression: | 7:1 |
Transmission: |
Gears: | 4 |
Clutch: | Wet multi-plate |
Performance: |
Max. Power: | 26bhp @ 6300rpm |
Cycle Parts: |
Frame: | Tubular cradle frame |
Front Wheel: | 18in |
Rear Wheel: | 18in |
Front Suspension: | Telescopic forks |
Rear Suspension: | Sprung Hub (1948), Swinging Arm (1955) |
Front Brakes: | Drum |
Rear Brakes: | Drum |
Dimensions: |
Dry Weight: | 172kg |
It was Edward Turner who designed the 500 cc 5T Speed Twin, released in September 1937. This motorcycle formed the basis for all Triumph twins until the 1980s.
In 1948 the 5T was fitted with the Sprung-Hub rear suspension, war having delayed it from 1941. However by 1955 the rear suspension became the standard swinging arm type used by all other manufacturers.
Coil ignition replaced the original magnetos in 1953, which made the engine easier to start.
Profile created by Laurence Mee on 31/12/2007. Last edited by Laurence Mee on 02/01/2008.
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