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Jeffrey and Gromully tandem

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Artweld

Finally riding a big boys bike
Was told that this tandam was a possible Jeffery and gromully built racing tandam frame, cranks sprockets shifter and wheels were added later not correct to the frame, any idea on if that's possible, thanks

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Front fork appears to be 1940's Colson. Cranks, sprockets, wheels are from some other 1940-50's era bicycles. I have three Gormully & Jeffery Rambler tandems and even though a few of the pointed frame lugs on your frame bear a resemblance to G & J the overall frame construction does not. I personally do not believe this tandem frame is G & J. I'm not sure what it is but my gut feeling is not G & J.

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Front fork appears to be 1940's Colson. Cranks, sprockets, wheels are from some other 1940-50's era bicycles. I have three Gormully & Jeffery Rambler tandems and even though a few of the pointed frame lugs on your frame bear a resemblance to G & J the overall frame construction does not. I personally do not believe this tandem frame is G & J. I'm not sure what it is but my gut feeling is not G & J.

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Ok thanks, I was also informed that it may have been a custom made to order frame from G & J that's why it won't show up in a catalog, it's that something that was done back then by the manufacturer? I'm attaching a pic of the BB which I never seen before, the outside bearing cup are egg shaped the bottom nuts and bolts are loosen to make the BB adjustable for proper chain adjustment, I moved the rear BB to show how it works, loosen the bolt rotate forward or backwards for chain tension, any Info would help as I would like to do a better restoration on it, would also like to badge it, thanks again
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Ok thanks, I was also informed that it may have been a custom made to order frame from G & J that's why it won't show up in a catalog, it's that something that was done back then by the manufacturer? I'm attaching a pic of the BB which I never seen before, the outside bearing cup are egg shaped the bottom nuts and bolts are loosen to make the BB adjustable for proper chain adjustment, I moved the rear BB to show how it works, loosen the bolt rotate forward or backwards for chain tension, any Info would help as I would like to do a better restoration on it, would also like to badge it, thanks again ATTACH=full]735002[/ATTACH]

The style of crank housing on your frame among many other frame characters is why I do not believe your frame is G & J. The overall frame design and crank housings are nothing like anything I ever saw G & J use on any of their bicycles. Again, aside from a couple pointed lugs your frame bears no resemblance to G & J bicycles and tandems I have seen. Since frame lugs could be ordered through supplier catalogs by bicycle manufacturers and frame builders I truly suspect your frame is some manufacturer other than G & J.
 
I believe I found your tandem frame. This frame looks to me to be an exact match. Angle of frame tubes look correct to me. I strongly believe this is your tandem. Even what I can see of your rear wheel dropouts look more like the Armstrong Moth than anything G & J ever built.

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Built in 1936 at the Sherbourne Street factory in Birmingham.

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Possibly not a Moth but certainly closer than G & J. I believe the tandem is later than 1890's based on construction. If Artweld would post a detailed photo or two of the rear wheel dropouts that may help narrow the decade in which the frame was built and also possibly help identify the manufacturer.
 
Certainly not an Armstrong 'Moth', almost certainly not English at all, headset, style of bottom bracket/chainsets etc are all typically American in design and wouldn't fit an English frameset. Probably American made, could be anytime from the '20s to the '50s judging by the frame design, pretty standard design.
 
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