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-   -   Opinions on Pivo/ Atax stems? (https://www.bikeforums.net/classic-vintage/1147061-opinions-pivo-atax-stems.html)

DIMcyclist 06-16-18 01:36 PM

Opinions on Pivo/ Atax stems?
 
Hey Everybody,

Does anyone have any thoughts to share regarding Pivo or Atax stems? They had kind of an interesting design, but some odd features; frankly, I'm not really sure what to make of them, whether using one would be a good idea, or whether it would be better to maybe use a similar modern stem (say, like a V.O. Gand Cru).

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Chombi1 06-16-18 01:50 PM

Never heard anything wrong with Atax stems, I've owned and used a lot of Atax stems (Both aero and non-aero clamp styles) through the years and all of them had been strong and reliable. Never owned a Pivo, but I think it is not the one that was called the "death stem" from the 70's, (because of tendency to crack at the quill wedge split area.) I think that reputation was owned by the AVA stems....

Aubergine 06-16-18 02:09 PM

I have found Pivo stems with cracks. The problem can happen any time the split in the stem has a square end. If you drill it so that the split ends in a circle, it will be much less likely to crack.

DIMcyclist 06-16-18 02:19 PM

Hmmm... After reading this post on another forum:

http://www.gitaneusa.com/forum/viewtopic.php?p=3346&sid=713f5cdb266082c0393d67ff15b58d1c

... I think I'll go with a more modern look-alike. I get the impression it would save a lot of (potentially dangerous) trouble.

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Spaghetti Legs 06-16-18 03:26 PM

Pivo is Russian, and other Slavic languages, for beer, so they have that going for it.

non-fixie 06-16-18 03:36 PM

Best to get a modern copy. And to be sure no one gets hurt, best send all those PIVOs and Philippes to me for proper disposal. :)

https://cimg6.ibsrv.net/gimg/bikefor...21401ae9c5.jpg

vintageiron 06-17-18 12:40 AM

I've owned both AVA and Pivo stems over the years and never had either break on me, but I've seen a few AVA stems that did fail. Never a Pivo though. Most I've run across were on Motobecane and Gitane bikes from the early to mid 70's. The two AVA stems I saw that failed broke off between the stem bolt and the bars, not at the usual point where it enters the fork tube.

tiger1964 06-17-18 07:29 AM


Originally Posted by Aubergine (Post 20397546)
I have found Pivo stems with cracks. The problem can happen any time the split in the stem has a square end. If you drill it so that the split ends in a circle, it will be much less likely to crack.

Brilliant; "stop-drilling" an "intended crack" :thumb:

Gonna do that with mine.

wrk101 06-17-18 01:59 PM

Thats one thing I like about old Motobecane donor bikes. Often they will come with nice, forged, SR stems in French size.


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