Hi All,
I was poking arount by ES2 basketcase & realized the frame seems to be from a twin. I assume the twins frames had cast frame cradles & the singles & Nomads all had tubular cradles? From a function standpoint would it matter if I used the twinn frame with the single ES2 engine?
the frame that came with the ES2:
The frame on my Nomad:
The existing frame has been bashed in on the top tube to rake out the steering angle (chopper stuff), I will take it to my frame man & have it corrected, but am unsure if I should sell it off as a model 7 frame & search for a singles frame, or put the bike together as is & find a more correct frame later. Norton singles frames dont come up for sale often here in the states 
Thoughts, comments, suggestions?
Both my plunger ES2 and ri…
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Thanks Andy. In the back o…
Thanks Andy.
In the back of my mind & thought the cradle was the difference. I know this basket case is a bit mixed up, so I assume nothing is right 
Here are my numbers:
My engine is: 43251 with a number 4 directly below & of course the 79x100 stamped to the right
Plunger Frame: 42211 ( first number 4 confirms as an ES2?)
Laid down gearbox: G101 8908 (G101 singles, G102 Twins ???)
I am showing 1952 starting with eng. number 42700 & 1953 starting with 48900, so I assume a 1953 engine?
Frame number starts with 4 means ES2, then 2211.
1946 starts with 2131, 1947 with 7756, so 1946 Frame ??
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Hi Eugene a quick way to t…
Hi Eugene a quick way to tell the difference between twin and single plunger frames the single has only one engine mount on front down tube the twin has two
regards roger
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Both my plunger ES2 and rigid Inter have the cast cradle as you've got. It looks like a single to me.
What's the frame number? If it's post war that would tell you for sure. There's a letter and number prefix. The letter is the year, A for 1946, B for 1947 and so one. The number tells you the model. ES2 would be 4. So a 1946 ES2 would start A4. I think 3 is model 18. Not sure about any others but I have seen them listed on the net.
If it's prewar there's no prefix, so you'd have to check the records.
Regards
Andy