|
|
Post by theluddite on Apr 26, 2019 10:33:39 GMT
Does anyone know what the critical angles were on Viscount frames?
I’ve tried measuring my 1978 Aerospace Sport using a smartphone app, but I am doubtful of the accuracy.
I came up with 73.5 degrees for the head tube, and 72.5 degrees for the seat tube.
Is it likely that Viscount would have used unequal angles in those days? My understanding is that frames were normally built with parallel tubes.
Danny
|
|
Jem
Viscount
?
Posts: 3,386 
|
Post by Jem on Apr 26, 2019 15:10:09 GMT
Hi Danny - I don't know off the top of my head but am almost 100% sure it's been shared on this forum before. The only problem is that the search function on here isn't the best. (sorry, not much help, I know)
|
|
|
|
Post by cusqueno on May 2, 2019 12:03:05 GMT
At least one of my Viscounts or Lamberts has a Davis Components bottom bracket shell. This has the angles stamped on it and might be a guide to the angles of the whole bike. I'll try to find it and let you know.
|
|
rodh
Viscount
Posts: 121
|
Post by rodh on May 12, 2020 2:22:10 GMT
Steve answered on the CTC epic post that all Lambert's aerospace jigs produced parallel 72 degree frames.
Hope this helps,
Rod
|
|
rodh
Viscount
Posts: 121
|
Post by rodh on May 13, 2020 0:02:18 GMT
Steve answered on the CTC epic post that all Lambert's aerospace jigs produced parallel 72 degree frames. Hope this helps, Rod ... and you can find a photo from Bendo that suggests the frames are 73 degrees here ... |
|
|
|
Post by theluddite on May 27, 2020 17:17:29 GMT
Thanks for pointing out those posts. I missed them the first time round.
I have also tried measuring the angles from a digital photograph, but I suspect that there can be a little distortion, and in any case I never seemed to get the same answer twice.
72 degrees parallel sounds very plausible, since it was a fairly standard setup in those days. Then again, Viscount didn't always take the "standard" route...
|
|
