Identifying Bsa Motorcycles

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BSA used a system of letters and numbers for yearly identification of their machines. Before you proceed be sure to read the introduction page. INTRODUCTION to BSA Machine numbering system. All models from 1912 - 1920. All models from 1921 - 1930. All models from 1931 - .The code consisted of three parts, the first as two letters giving month and year respectively, the second was a five digit number and the third a model code. The engine and frame received the same markings. After dating and identifying many thousands of BSA 's we have found that often a bike was built or shipped outside .BSA used a system of letters and numbers for yearly identification of their machines. This information combined with the yearly numbers below should help you identify the year and model of your machine. The Frame Numbers are alway stamped. If you find raised numbers, these are casting part numbers. Up until 1968 it is .Until 1968, BSA used a numbering system with a distinctive prefix for each type of machine, so it is easy to see if the engine and frame are from the same model or not. They then turned to a system using a dating code which was common to all models. The engine and frame number of the first arrangement seldom match .

Help with identifying these motorcycles! Shown below are two 1940s Nortons, but I'm after some help in identifying them. Firstly, the p.o with a lady in view - this . Manuals , Services sheets and anything that has made my bikes run a little better and life a whole lot easier, it's all here. If anyone feels that I'm .JAP - Vintage and Veteran Engines - Cl.ic British Motorcycles at Sheldon's EMU.Sears Allstate - 50s and 60s Motorcycles, Scooters and Mopeds from Sheldon's EMU.

  • Cl Ic British Motorcycles Info P Ographs

    Help with identifying these motorcycles! Shown below are two 1940s Nortons, but I'm after some help in identifying them. Firstly, the p.o with a lady in view - this .

  • Tech Oldthumpers

    Manuals , Services sheets and anything that has made my bikes run a little better and life a whole lot easier, it's all here. If anyone feels that I'm .

  • Jap Motorcycles

    JAP - Vintage and Veteran Engines - Cl.ic British Motorcycles at Sheldon's EMU.

  • Sears Allstate Motorcycles Scooters And Mopeds

    Sears Allstate - 50s and 60s Motorcycles, Scooters and Mopeds from Sheldon's EMU.

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