Engine & frame numbers for Triumph single cylinder vintage motorcycles including the following models,
I have compiled a series of tables to show the generally accepted information on the engine and frame numbers for Triumph motorcycles. This table shows data specifically for the veteran Triumph pre-unit twin cylinder motorcycles from 1937 to 1939
Pre-unit Twin cylinder models, 1937 to 1939
| Speed Twin, 5T, T100 |
|---|
| Year and model shown as prefix to engine number. For example 8-T-33445 is a 1938 Speed Twin (later identified as “5T” instead of just “T”. Frame prefixes were-TH”for early Speed Twin. ‘TF’ for the TI00 and later 39/40 Speed Twin. |
If you are looking for a Triumph part, it may be worth looking at this page. If I have anything, that’s where it will be. You will need to look for the Triumph parts among the other early parts.
If you are looking to sell, or seeking a specific part, let me know here. I will do my best to help.
