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The Marston Sunbeam Club & Register Forum

General Category => Technical Discussion Forum => Topic started by: Tom Snow on March 19, 2016, 11:09:11 AM

Poll
Question: Does the club have any information on frame numbers with an "EXP" prefix?
Option 1: Does the club have any information on frame numbers with an "EXP" prefix? votes: 0
Option 2: Does the club have any information on frame numbers with an "EXP" prefix? votes: 1
Title: Frame numbers.
Post by: Tom Snow on March 19, 2016, 11:09:11 AM
Does the club have any information on frame numbers with an "EXP" prefix?
Title: Re: Frame numbers.
Post by: singleminded on March 19, 2016, 01:25:41 PM
Is this a flat tank machine or a later 30'type?..john
Title: Re: Frame numbers.
Post by: Tom Snow on March 19, 2016, 02:08:16 PM
This is a mid '20s (I guess) flat tank frame.
Title: Re: Frame numbers.
Post by: singleminded on March 19, 2016, 02:49:48 PM
I don't have an answer for you i'm afraid..
Some sort of odd logic might suggest an EXPerimental frame.
any chance you could post a picture, it may help others more knowlegible than me..John
Title: Re: Frame numbers.
Post by: phutton on March 20, 2016, 07:25:13 PM
There are no frames with the EXP prefix on our Register. There five with EX, but there is no evidence to suggest the factory ever used this prefix. Some 1970s/80s restorers did use EX, however. We have EX 164, 166 and 168 on the Register, but these are for bikes from 1926 to 1934.

We have EXPn for a very interesting engine, but that is the only one. We also have five EX prefix engines. The same comments apply to these as to the frames.

I hope that helps, but I suspect it doesn't!

Paul

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