track lugs?

R

retrotrack

Retro Guru
Hi all,

I have been lurking this very forum for some time checking out the readers rides section until 3am :roll:

I have however came with a few questions.

I'm in the process of having a track frame made. The frame builder has given me a very, very good price as I had an existing track frame which was 531, I wanted the new one to be 853 in the exact same measurements.

My current track frames runs some very tight angles, which I'd like to keep on my new frame, but I'm really struggling to find some lugs which are tight enough? I've tried contacting Nova in the USA (had no reply) and framebuilding.com which where real helpful but I didn't quite get the answer I needed.


Anyone help? :LOL:


Thanks,

R.T
 
Framebuilding.com/Ceeway are the best bet in the UK but if they can't help then you could be struggling. What angles do you want? BITD, builders used to 'pull' the lugs to get steeper angles. In fact, I don't think anyone actually made lugs steeper than 73/74 degrees. I had a 75 parallel TT frame and you could see that the lug/tube angle was slightly out, especially on the top tube at each end.
 
We used to reckon cast lugs could be pulled 1 degree, and pressed lugs a bit more. Some pressed lugs were slotted and rewelded at considerably different angles, as done in one of the most collectible rubbish frames of all time.
I have no experience of investment castings.
Keith
 
Can 853 be fillet brazed to avoid lugs?

Shaun

PS Keith, Just trying to think of a collectible rubbish frame ?
 
Shaun, I had particular experience of Les Cassell and his dream product the thanet Silverlight. In 1958 I took on the remains of it, a shop in a backstreet with piles of empty boxes to look like stock, and 2 extremely expensive jigs.
Because of the crazy frame design the lugs were refabricated. Also a lot of pressed letter "T" were added everywhere.
I had previously spent several years laughing at these heaps of junk, which can now fetch perhaps £1500 for a frame.
Keith.
 
Hi Keith

Apologies to the OP for posting on his thread but looked at pics of the Thanet as I had never seen one before. Aerospace design he says LOL. Thought the Flying gate was a bit odd but at least they were very nicely made :D

Learn something new every day :D

Shaun
 
Midlife":xboyu0vo said:
Can 853 be fillet brazed to avoid lugs?

Shaun

PS Keith, Just trying to think of a collectible rubbish frame ?
Click to expand...

I'm fairly sure Dave Yates has offered fillet-brazed 853 road frames before now.

David
 
My introduction to the Thanet was via my copy of 'The Complete Cyclist' where there was a drawing of various 'Unconventional Frames'. I suppose this may be where my propensity for being attracted to the weird and wonderful (?!) in bike design came from.
 

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Those Thanets are indeed both weird and wonderful...I've mended two over the years.
They'd both cracked through the seattube where the seatstays cross.
There was no reinforcement of the joint and a just tiny 8mm (5/16") tube pierced through both stays and the seattubes as a brace.
Beautifully light and pretty stiff to ride, considering the spindly tubes involved.

Any interest in a neo-retro version, or is the design still controlled like the Bates, Hetchins, Flying Gates and Paris frames?

All the best,
 
Any patents will have long expired so you will be able to copy away :D You will not be able to pass them off as original though, that would be naughty LOL

Shaun
 
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