Bsa frame dating

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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. All dating would therefore be approximate bicycle history: Find great deals on ebay for vintage bsa bike shop with confidence. Find this pin and more on the bike by ethier bsa: Toggle navigation im dating a mormon girl grimes county middle eastern single women saint paris black women dating site. Bsa bicycle dating British spares supply classic motorcycle parts by mailorder for triumph, norton, bsa motorcycles online search and price, free special products catalogue over 13, line items on 3 miles of shelving.

Bsa bicycle dating

Owners with late model BSA's can easily identify the month and year of their machine as the factory adopted a dating system for frame and engine numbers for the season models. As with all previous BSA seasons the model year started after the factory shutdown in July so that models were those made from August , through to July They would however have some machines in stock so that so that it is possible that a July model may be to either the previous or the next year's specification.

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.

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After dating and identifying many thousands of BSA's we have found that often a bike was built or shipped outside the dates given by the lettering system so this should only be used as a rough guide to the year and month of your machine. The numbering started at the beginning of each season and always started at leaving the first 99 for experimental use.


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The numbers were consecutively allocated throughout a model range so as an example all B group machines were lumped together irrespective of whether they were a B25 or B Sometimes they were despatched months earlier or later so the lettering system should just be taken as a rough guide. The model designations are as follows.

The years given are all model years: Rocket Three five speed - A75RV, and A75V - and Royal Star A50R - through to Thunderbolt A65T - through all years.

B Frame Number location | Machine ID, Dating & Registration | Forum - BSA Bantam Club

Police Special A65P - through all years. Lightning A65L - through all years. Firebird A65F - and But the photos on the same website show the stays on a BSA and my bike are different. So, given the close similarities to the brochures, and photo details of the Military Roadster showing the same seat and chain stays, I think mine is from that lates era.

I am still planning a custom frame build at some point, and I am tempted to do a recreation of the Pathracer in the above brochures. However I suspect this would require custom lugs because of the severe top-tube slope - this would be either financially prohibitive or practically impossible.


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But I guess I'll never know if I don't try.. Find More Posts by randyjawa.

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Find More Posts by old's'cool. I would say the bike is BSA touring bicycle from the 30's to the 50's - it does not have the traditional BSA fittings from before Also the chain wheel is chromed which would put it after The bolted seat clamp was used on touring BSAs even in the 30's to 50's. Only the race and sports models had brazed on seat stays Find More Posts by pantherwerke.

Hi we have one like this.. Does your chainwheel with 'BSA' cast in it screw off with a five screws?