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When normal production resumed in 45, bikes were coded J. In fact all army military contract bikes remained as G for 42-43 (with an M for military stamped in front). The US Columbia G519 bicycles were were produced from late 1941 to early 1944. Sounds far fetched? I agree I will probably never know, but here are two supporting pieces of information. They then continued stamping frames for a short until someone confirmed that there should be no letter change foe bikes on this contract, so reverted to R. Perhaps in January 1943, the person stamping the frames realised that, since it was a new year, it was normal to start a new letter block for frames, not S, the natural follow on from R, for the reason of possible confusion given, but T. Using letters for date codes, it is common to omit I, O and S, since they resemble the numbers 1, 0 and 5 (Seiko cleverly date their watches by month 1,2,3,4,5,6,7,8,9,0,N,D, so the 0 is for October!). However, it is known that 'Parabikes' started manufacture in 1942, probably at R1, and just counted upwards into the R70000's by end of production in 1943.
Bsa bicycles serial numbers serial number#
The serial number system for BSA bicycles is not currently known, and I cannot find enough known date examples to start to decode it.
Bsa bicycles serial numbers code#
So, I'll float a theory for you to shoot at.īicycle manufacturers commonly used the frame code to date their bicycle to year or even month of production (I worked out the dating system used for US Columbia G519 Military bicycles which you can see on other websites, which dates to month of manufacture). Nearly a month and no responses? I'm surprised, due to the wealth of arcane knowledge on the site (-:
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I have a couple of ideas, but would be interested in any theories as to why it is stamped T.Īnd, whilst I'm here, leads to spare parts welcome, especially a replacement top butterfly nut and screw. Has anyone seen another with a T serial? Being an early Brown colour, there are R serials before and after it. It's plain from the photo and comparison with my other bikes that this is not a light or mis-stamping of an R.įor comparison, here is Martyn Hillyard's in post one of his Parabike restoration: I've always read and been told that they start with an R. The BSA transfer seems to vary, I have originals in both Silver and Gold? Photos below show that it is missing all the usual parts, but it is an early second pattern with its original SCC2 Brown paint, and all of the transfers in good condition, so it's worth taking some effort on it. I'm just starting on my third Parabike restoration.