Joined: Sep 2011
Posts: 3,372
Likes: 598
From: Baltimore MD
Bikes: '72 Motobecane Grand Record, '72 Gitane tandem, '72 Raleigh Super Course, '73 Raleigh Gran Sport, '73 Colnago Super, '76 Fiorelli Coppi, '78 Raleigh SBDU Team Pro, '78 Trek 930, '81 Holdsworth Special 650B, '86 Masi GC, ’94 Bridgestone RB-T
There is a decent flow of 50.4 rings on eBay, if you don't mind used. With patience they can be had for decent prices (<$20 @). Search for TA, Stronglight, VO, Electra, Zeus, Lambert. There were many folks making those back in the day.
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The man who dies with the most toys…is dead. - Rootboy