Bruce,
The 104 had a bcd of 122 mm, just like the 63, 93, and 105. Unlike the latter cranks, the 104 had five fluted arms, sort of like a Campagnolo NR/SR crank. All the others had the "opened star" shaped crank. A very nice example of the 104 can be found on the CR site, under "Peugeot". Wouldn't you know it--the bike is one of Jerry Moos' beautiful French bikes! Every 104 crank I have seen has "104" stamped near the pedal hole. Although they are more modern in appearance, and not as nicely finished, I have purchased some 122 bcd rings from http://www.xxcycle.com You'll have to drill your own, because NOS drilled rings for these seem to be rare as rocking horse manure. If you find some, please let me know--I have gotten tired of trying to pick one up on ebay.
Galen Poole Jackson, MS beautiful day, just finished 30 miles on that poorly made PX-10
> Listers: I took a bit of time and researched the crankset I have. It
> appears to be the 104 model. A similar one (105) model is depicted on the
> CR page. I would request one or more in VG condition.
>
>
> Bruce Thomson Spokane WA 99204
> (509) 747 4314
> Masi3v4me@yahoo.com
>
>
>
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