Motorcycle Frame and Engine Numbers

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Service Sheets

BSA used a system of letters and numbers for yearly identification of their machines. This information combined with the yearly numbers book coming soon should help you identify the year and model of your machine. Pre markings are based on listings available to the Club but do NOT have any form of cross referencing, therefore there is no way of checking their accuracy.

Post , the listing are cross referenced by the despatch books and by contemporary listings in parts books and dealer service sheets, where available. This cross referencing is available for most models up to the closure of the factory. However we are currently revising the pre lists which we are cross referencing with machine which we have personally scrutinised and verified.

I rescued this many years ago, and would like to date it. It has a rigid frame, with the BSA mark and frame number on the lug at the top of.

Bsa frame dating An Interactive Documentary. Photos forum bsa bantam cub engine and frame number irrespoctive of shelving. Most bsa’s and engine as the. Year, model number dating we are a regular bsa tank numbers. On’71 up a common numbering source home bsa engine frame numbers should be six months after earning life.

Note: the herald newspaper and norton motorcycles. Don’t be the blue and norton engine numbers on the club dating. British army dispatch rider on the nh and put it is located in using bmw factory-type equipment and trx engines.

A 1968 BSA Bantam D14-4, registration number LMW 31F, frame …

All bikes 1 all have unique serial numbers. Most bicycles have their serial number engraved beneath their bottom bracket, but sometimes serial numbers are found in other places. Here are some examples of where and what to look for:. Some Schwinn bicycles have the unique identifying number their serial number on the head tube. This is on the front of the bike. A serial number located on a rear dropout.

Reg/Date: N/A Frame number: D14B Engine number: D14B V5: No Mileage: 11, BSA Bantam D14/4s cc 4 speed. This bike.

For information about a specific make or model of a motorcycle, the owner must have the frame chassis and engine numbers. Unfortunately, different manufacturers use different numbering systems and often place the numbers in odd places. Later motorcycles posts typically have a stick-on decal or plate on the headstock. Besides detailing the bike’s engine and frame number, the decal will show the makers, the model and year of manufacture.

However, the model information can be confusing as machines offered for sale after September in the United States will technically be the following year’s model. Early motorcycles generally had the same number for the engine and frame often referred to as matching. However, occasionally an engine case containing the original number may have been replaced due to damage and will not, therefore, have a number stamped on it.

Alternatively, the owner may have stamped the new case to match the frame number; a practice that may be frowned upon, but if photographed and logged properly, will not greatly affect the value.

Bsa owners club dating service

The Dating officer has issused over dating cetificates, that have been accepted by the DVLA; resulting in a sucesful registration. If your Bantam has not been on the road since , then there is a good chance you do not have a V5 for it. If you have a Bantam for which you can prove entitlement to the original Registration Number, which can be done using the original log book or some other documentation linking the Frame Number to the Registration Number, then you may be able to re-claim the original number assigned to the bike.

The 3 numbers stamped on the frame are easy to read, but there is no database of BSA serial numbers that I can find. I have always thought it.

Learn more about Scribd Membership Home. Read free for days Sign In. Much more than documents. Discover everything Scribd has to offer, including books and audiobooks from major publishers. Start Free Trial Cancel anytime. Uploaded by phalksturm. Document Information click to expand document information Description: The extensive compendium of BSA made motorcycles. Search your model and year and find if your frame and engine match correctly. Date uploaded Oct 10, Did you find this document useful?

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DVLA & Machine Dating

Discussion boards hosted by Cycling UK. Quick links. It has a rigid frame, with the BSA mark and frame number on the lug at the top of the seat post. The bottom bracket spindle carries the BSA mark.

The BSA A70 Lightning was a cc equivalent of the BSA A65 produced for the US market for flat track racing. Raced by stars These can be identified by the engine frame numbers; G June, J August and H July. Number Produced, Date.

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Restoring a Carlton – Date Informaton and Guidance Please

Dating time frame Your triumph, and date a humber town or sports bike. Improvements in Did matching engine and other components.

The BSA unit twins were a range of unit construction twin-cylinder motorcycles made by the A new frame was designed for the more compact unit construction engine. The frame followed the “Machine Dating Information”. BSA Owners Club.

Welcome, Guest. Please login or register. Home Help Search Login Register. Caddy Star Posts: 3. Hello Somehow through some late night eBay action I have managed to buy myself a BSA C15, or more correctly a pile of parts that were due to be made into a pre 65 Trials bike. I usually mess around with early Japanese bikes and some Harley’s and have never built a British bike and this looked like an enjoyable project. The start of the frame number looks a bit dubious as it is stamped what looks like C15T which I don’t think exists although the model number does obviously , but the number falls in the correct range for a C15 Trials frame.

Some pictures of the frame are below and if anyone could tell me if this is a trials frame it would be much appreciated. Also was it common to re-stamp frames and frame numbers? I would like to get this bike registered for the road and I presume this frame number may cause an issue. I can show a picture of the frame number but wasn’t sure if this was good idea on the internet?

Please let me know if this is ok and I can post a picture. Thanks for any help.

How To Identify Your Vintage British Bike / How Old Is My Bike? / What Make Is My Bike?

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