Monday, August 15, 2011

Identifying a Royal Enfield Bullet 350, by the numbers

Thomas has a much modified Royal Enfield.
Identifying a Royal Enfield is a challenge for me, especially when it comes down to numbers chiseled into motors or frames.

Help identifying one mystery motorcycle came recently from the chairman of the Royal Enfield Owners Club.

You might remember the motorcycle. Thomas Jakobsson, of Sweden, wrote:

"I wonder if someone can help me identify my supposedly 1966 Royal Enfield. My bike has Frame number: G2/50910 E1/12910. Engine number: G2/50910 20620 E1/12910."

Sprung pillion seat and disk brake are common modifications from India.
I asked for help on his behalf, and this comment came from Graham Scarth of the Royal Enfield Owners Club in the UK:

"350cc Bullet G2/50910 left the Redditch factory in April, 1962 as a 'completely knocked down' kit of parts. The EI number was added at the Madras factory on assembly."

I appreciated the information, as does Thomas, who wrote to add that "I have since spoken to an Indian company called Soni motors in New Delhi; they say it's a company called Madaan Motors that restored my bike with new parts."

He attached the pictures seen here.

Lots of numbers on the motor.
There is some hope on the horizon for those who want to know more about the origin of their motorcycles. Graham is courageously attempting to compile a spreadsheet of frame/engine numbers of made-in-India 350cc machines. He writes, in the club publication The Gun:

"If you have an Indian built 350cc bike with pre-VIN numbers (those starting with ME3) I would be grateful if you would let me know the engine/frame numbers of your machine and the model and year you believe it to be.

Numbers at top left (facing forward) of frame, often hard to read.
"If you have one of the early machines with both G2 and E1 or E1 and B prefix numbers, please be sure to let me have both. Some will only have a B prefix number and some of these may have an alpha/numeric suffix. From 1982 on, it should have a B number with a digit in front."

Graham is asking that you include digital pictures of the numbers to absolutely verify them. You can email him at or write him at 39 North Moor Road, Huntington, York. YO32 9QN, United Kingdom.


  1. Hi David I don't think it's a ignition key in the battery box. The Indian model bullets have a key lock for the battery cover. You can take the cover off to inspect your battery just by turning the key.

  2. Jessie, thank you for the correction! That has to be it.

  3. i recently purchase a dismantled incomplete bike & i unable to identify which model this bike is , even no number on engine case, but in registered document in the year 1968 , states model as Ex army , Chassis number : g/2 18310 & engine number g 13347 . please tell me which model this bike is, thank you

    1. Full details on having your Bullet identified, for free, by Graham Scarth, chairman of the Royal Enfield Owners Club UK are in my post at this link.

  4. Hi David,
    I am Biju Mathew from Australia .I have purchased a a Royal Enfield from India intended to import to Australia . It has got an Engine Number G2 70256 along with a number EI 32256. Same number is on chasi as well. Could you pls advice its history .This helps me to import it to Australia as an enthusiast motor bike recovery scheme as classic ROYAL ENFIELD .


  5. Biju, you can read an explanation of how to date your motorcycle in my blog post at this link. Basically, you should send the information above to Graham Scarth, chairman of the Royal Enfield Owners Club UK at Graham has made a study of these numbers and likely will be able to help you. He does this at no cost to you. It would be helpful to him if you would attach to your email photos of the bike and especially of the numbers. Sometimes the way the numbers are applied to the motorcycle can provide valuable clues.

  6. what kind of petrol does it need? lead additive?

  7. Hi David, Good Morning. Still the email address for getting the enfield bullet is valid since you have mentioned this address on 2016 and it is before 3 years. If the address is changed can you please share the new email id for contacting the chairman? Thanks in Advance.

    1. The email is (note that his address ends in zero-one, not oh-one). All best.

  8. Hi Guys, I am owner of a G2 bike it is registered as Army disposal in 1980, and the first owner claims that it is 1962 manufactured.
    Further the chassis number is clearly visible but the G2 serial number on the engine is missing.
    Will it be a problem at the time of FC inspection?
    I will share the photos also through whatsApp my number is 7753032148

  9. Hi There. Ive just Brought a 1951 Royal Enfeild 350cc Bullet which has a 500cc Enfeild motor in it. Engine No GZ17978 I was wanting to know what year the 500 is to order a gasket set for it . Many thanks Dave Black.
    New Zealand

    1. Dave, write to Graham Scarth at for the answer. He has the knowledge base you need to get the answer. All best.

  10. G2 70880 engine number and chassi number are same it's right or wrong plz inform me

    1. Dear Unknown, all you have to do is to send the information to Graham Scarth at Include photos of the numbers if you can. He will check his records for you.


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