JoMang

Not sure year or builder but would love to know. No visible serial but looks like it may be a repaint and thereby not visible. Parts are campy record hubs and cranks. Duraace seatpost, cinelli stem and bar. Super champion competition rims made in France. Help appreciated.

merziac

Much earlier than the repaint, very cool, the real experts should be along shortly.

clubman 

Looks like a 151 bcd Pista crank. Perhaps there's a date code on it? I think they made those into the 80's.

Edit...wrong, these cranks should be earlier than 1970.

big chainring 

No serial # on that NDS dropout? Looks early or mid 70's to me. Maybe check steerer for a serial #. What does the frame ST measure?)

nlerner

Did someone take a 70s Paramount with Nervex lugs, swap in track ends, and repaint in 80s style?

big chainring 

That dropout is heavily scored. Those were some beefy dropouts with really great chrome finish when new. Wonder if the serial # was ground off???

Pcampeau

Paramounts usually have the serial number stamped into the steerer tube as well as the left dropout. If we could see that someone will be able to date it.

JoMang

nothing on dropout visible and stem bolt is a little stripped so need to approach that in a more organized matter.

JoMang

i was also told by PO tgat it was ridden in the 76? Paralympics.

repechage

In 1975 I had a choice- 144 or 151 BCD
I went with 151 as I could find more chainrings
the 144 pista at the time would be new production Campagnolo $$$

repechage

in 1974 Schwinn started using that plain crown on a regular basis.

JoMang

appears to be 144bcd

JoMang

ST is 60cm CTC

merziac

Get some penetrant in there to help.

Then maybe try off size key for better fit, snug one you can tap in to fix the hole a bit.

nlerner

The more I look at that track end, the more I conclude it was brazed on at a later point in someone’s garage. The brazing work isn’t exactly refined.

merziac

I agree it looks rough, many were.

JoMang

out of curiosity what do you base this on?

merziac

Interesting they didn't fill the HB holes during the repaint.

Looks like round track fork blades but its also drilled very cleanly.

merziac

id, od?

JoMang

assuming you mean inner diameter or outer diameter but that does not apply to “CTC” center to center.

big chainring 

Thats the way Paramounts were back then. Big fills of brass on the fork ends. I always thought it was done for the Lifetime warranty. More is better kinda thing.

merziac

Correct, OD can indicate certain tubing that can be a clue.

merziac

Paging @trainman999 and @Kactus

clubman 

It's a 151. Google a 144 crank, much less bolt clearance.

I agree, those look like proper track forks, even if drilled.

Kactus

I'm guessing at 1960's.