Well hello!

I have been reading the archives and trying to gather as much information as I can regarding upgrading a Peugeot to a fixed gear bike. I know a fair bit now, but would like to know the answer to this question before I do anything more.

I came across a very good condition Peugeot UO8 frame, just the frame, and want to build it up into a fixed gear bike. I also wanted to try and use the Shimano UN72 with Phil Wood cups for the new bottom bracket. I have been able to track down a UN72, but it is 73mm x 107mm. Will this fit on my Peugeot?

I understand that these are rather hard to come by and didn't want to disregard this until I knew for sure it wouldn't work.

Thanks for any help you can provide

You're going to pay through the nose just for the cups. Wait a month or so for Velo-Orange to release their French bb, and just make sure to get one before they run out. You'll certainly come out way ahead on price.

Im really curious about the velo-orange french bb.
When exactly is it supposed to come out?
How much am I looking to pay?

Anybody got some more info about it

Last info I saw, on the VO Imports Blog, said by May 1. Since we're past that, we can assume soon; apparently VO has a whole batch of new stuff arriving soon (again, read the blogs from VO and VO imports). Word is 35-35$ range.

Thank you very much.
Exactly what I needed to know.

I've got 2 old Peugeots, a '75 U08 with cottered cranks, and one a little newer (late 70s, early 80s maybe), both with french threads. I turned the '75 into a ss, and I'm converting the newer one into a fixie.

And I restored another '75 recently for someone that had been a JIS crank installed on a french spindle (wobble!). Getting a French-threaded bb is a problem. My local LBS told me not to even take mine apart unless I had a spare on hand.

I saw a '75 PX-10 two weekends back at a swap meet, just the frame. And I asked about french bb's and headsets. He said that's why he had the frame for sale. He bought the bike just for parts and stripped it, which I consider kind of a drag. It was a beautiful frame too, but now it's someone else's problem.

My neighbor bought a Phil Woods bb for his PX-10. Cost is $100+, if I remember right.

The Velo-Orange option seems to be reasonable, but hopefully it wont take many more months before something french threaded is released.

My question still remains. I don't know much about the size of this Peugeot UO8 bottom bracket. I know that the UN72 has removable cups and I have a 73mm x 107mm BB. Will this work, or will it be too large (73mm) and too short (107mm)?

i used a 70x107 spindle on my peugeot when i used the stock cups and an italian spindle...i needed a 110 spindle for my cranks back then cuz i was using road doubles...but a 107 should work depending on the cranks. i think a 73 may be too large.