Originally Posted by
dddd
Carbolite tubing was first introduced on Peugeot's lower-level racing-style bikes having brazed lugs.
It was a significantly lighter tubing than their previous high-tensile tubing as used on their U08 through U010 frames, and as such they no longer spot-welded the cable stops onto the now-thinner tubing but brazed on new barrel-shaped cable stops instead.
Later on they used Carbolite tubing for making their unique lugless frames, which were lighter yet by virtue of their losing the lugs.
My first-year 1979 Carbolite U09 carries the Super Sport moniker of that one year, and sort of lives up to it. It is a great-riding bike imo, with far more-sporting geometry than any previous U0-series bikes. I think of it as "a Super Course with 1-degree steeper angles", again it is an altogether different animal than any that came before it.
I didn't know that the carbolite tubing used on the UO 9 and later bikes was different than the hi tensile steel used on the UO 8s and 9s. I really liked the UO 9s and 10s and wish I could find one in my size.
I did think--and perhaps incorrectly--that the frame geometry was pretty much the same on the UO 8, 9, and 10s. I'm fairly certain that they all had pretty similar long wheelbases (42 inches if my memory serves me correctly) and I thought they all had relatively slack angles. Once set up, these bikes all make fine C&V touring bikes.