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#849318 05/19/21 10:58 am
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Are the frame and engine numbers the same on a 1957 Cub. It is a swingarm frame. The number on the one I looking to buy are:
Frame T2625
Engine T20 26858

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Al
2016 Tiger 800 XRx
1969 T100R (in Restoration)
1957 T20 (needs restored)
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They are always the same no matter what year. T2625 is a 1954 and T26858 is a 1957. Most title states go be the frame number.


rightshifter

1967 T20M 1958 T20C 1960 T20S 1960 T20SS 1961 T20 1965 T20SC 1965 T20

1967 T120R 1969 T120R 1970 T120R

1969 T100C 1968 T100R

1953 6T 1957 TR5
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Originally Posted by rightshifter
They are always the same no matter what year. T2625 is a 1954 and T26858 is a 1957. Most title states go be the frame number.

Could a 54 plunger be converted to a swingarm frame.

9AB09FF7-A32A-42DB-A000-4CCDEA43FEAC.jpeg E35899A1-6D40-4FE2-AF81-0009BCD885A3.jpeg

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1957 T20 (needs restored)
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The frame and engine number should match. That may be a frame part number, are you have the stamped frame number?


Bill B...


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Boomer #849377 05/19/21 8:44 pm
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Originally Posted by Boomer
The frame and engine number should match. That may be a frame part number, are you have the stamped frame number?


Bill B...

Yes that number is stamped.


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Al
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26276 - 35846 are the 1957 Cub numbers. I am thinking that your frame number is actually matching the engine, but perhaps its hard to read, as they can be. The headstock number is usually F4221 which can be stamped or more usually cast in.


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1970 TR6
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It is possible to convert to a swingarm, the rear section bolts on. Not sure of the exact fit, but nothing a good welder and some oxy heat couldn't fix if it was needed.
But you would need to show us clear photo's of the frame and engine number...to see if we think they are genuine factory stamped?

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Thanks guys for your help. I pick up the Cub Sunday. So I will have more info and photos.


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I'm not sure that a plunger frame is bolted?
Without going to my garage, I am pretty sure it's welded/ brazed?

A plunger frame is worth a lot more than a swing arm one

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AngloBike #849516 05/21/21 1:13 am
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I messed that one up, result of running a high temp and some dreaded lurgy...sorry. Getting off before I do it again smile

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My bad after getting it home and cleaning the frame and getting a better look the numbers are the same.

Thanks for all your help probably need more help when I start the restoration. Got to get my 69 T100R done first.


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Result! It will make a lovely little 'bike

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