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Gearbox number question

Submitted by mark_ross on Sun, 01/09/2013
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Commando

Hi from Australia

I was photographing my Vin and engine numbers for a factory record certificate and notice a G on the gearbox after the numbers

What does it stand for any Ideas???

Mark From Oz

Submitted by phil_hannam on Sat, 07/09/2013

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Mark

A few more clues might help solve your mystery suffix.

Can you give a few more details about your bike? Engine number, Model, etc. Do all the numbers match? In the UK some race bike tuners used to stamp crankcases and gearbox cases with their initials or sometimes just single letters to signify a modification. Any chance of a photo of the numbers and letter?

Submitted by mark_ross on Mon, 16/09/2013

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Hi from Australia

I was photographing my Vin and engine numbers for a factory record certificate and notice a G on the gearbox after the numbers

What does it stand for any Ideas???

Engine Frame And G/box Number 206665

1972 750 Combat Roadster.

Pic attached

Mark From Oz

Attachments norton-g-box-num-jpg

Submitted by richard_payne on Mon, 16/09/2013

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200530 has a 'Y' where yours has a 'G'. I'm not aware of any significance. Possibly just a casting matching or maybe an assembler code. It will take a lot more observation to work out if there is a pattern.

Submitted by ian_richtsteig on Thu, 19/09/2013

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Previously richard_payne wrote:

200530 has a 'Y' where yours has a 'G'. I'm not aware of any significance. Possibly just a casting matching or maybe an assembler code. It will take a lot more observation to work out if there is a pattern.

Just to add to the data, my 750 Roadster has matching engine, frame and gearbox numbers and the gearbox has the letter L after the number.

My spare Commando gearbox; No. 209513 also has the letter L after the number.

regards, Ian

 


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