Peugeot introduced the PSV-10 model into the US around 1982. I have a 1983 PSV-10 that I bought as a partial bike - no wheels or seat. I have all of the parts, someday I need to finish assembling it.

The "SV" in the PSV model number stood for Super Vitus tubing.

The French tubing manufacturer Ateliers de la Rive made 3 favors of Super Vitus: 971 - early 70's through early 80's, 980 - late 70's to late 80's and 783 - early through mid 80's.

Super Vitus 971 had the same strength and tube wall thicknesses as Columbus SL tubing. SV980 used the same high strength low alloy steel as SV971 but the tubing wall thickness was thinner which made lighter frames. While not as strong as Reynolds 753, SV980 was slightly lighter. SV983 tubing wall thickness was between SV971 and SV980, it was made from a super alloy steel which produced frames as strong as any on the market at the time!

Super Vitus tubing was highly underrated! It was used on many top quality French bikes plus some of the top US frame builders used it (unbeknownst to a lot of their customers).

Note: Ateliers de la Rive used the name "VITUS" from the 1930's through the 1990's. It was originally used for their best quality tubes, then middle, then lower, then top of the line tube sets again. Super Vitus tubes were their top products while they were being produced.

Ateliers de la Rive history (needs some fine tuning):

Vitus history by Norris Lockley

In the mid 80's Peugeot started using model names (Mont Cenis, Galibier, Ventoux, Arravitz, etc.)rather than model number (U08, PX10, PSV1, etc.).

As someone pointed out above, Peugeot as well as, Motobecane, Gitane, Raleigh and Bianchi made models for specific world markets: France, Benilux countries, Germany, Poland, Hungary and other east Bloc countries, the UK, the US, Canada, Australia, Japan and so on.

The Mont Cenis bikes were made for specific markets.

I have 4 bikes made of Super Vitus 980.

I bought a 1988 Peugeot Biarritz with a SV980 frame and a Shimano 600 "Tricolor" gruppo. The bike had less than 100 miles on it! I'd been looking for my "just right" Goldilocks bike since 1975... I found it!

I liked the bike SO MUCH that I found a bare frame and put it together with similar components to use as a rider keeping the newer one as a wall hanger. It rides and handles perfectly! The SV980 frame absorbs most road shocks and vibrations! Pictures at 11:00... (see below)

BTW, I have a 1988 Peugeot Chorus made of Reynolds 753 tubing. With the same tires, tire pressures etc. the Biarritz is a much smoother riding bike!