Go Back  Bike Forums > Bike Forums > Classic & Vintage
Reload this Page >

Opinions on Pivo/ Atax stems?

Notices
Classic & Vintage This forum is to discuss the many aspects of classic and vintage bicycles, including musclebikes, lightweights, middleweights, hi-wheelers, bone-shakers, safety bikes and much more.

Opinions on Pivo/ Atax stems?

Old 06-16-18, 01:36 PM
  #1  
DIMcyclist
No longer active
Thread Starter
 
Join Date: May 2012
Posts: 1,001
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 89 Post(s)
Likes: 0
Liked 1 Time in 1 Post
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).

-
DIMcyclist is offline  
Old 06-16-18, 01:50 PM
  #2  
Chombi1 
Senior Member
 
Chombi1's Avatar
 
Join Date: Nov 2015
Posts: 3,404
Mentioned: 94 Post(s)
Tagged: 0 Thread(s)
Quoted: 1204 Post(s)
Likes: 0
Liked 235 Times in 175 Posts
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....
__________________
72 Line Seeker
83 Davidson Signature
84 Peugeot PSV
84 Peugeot PY10FC
84 Gitane Tour de France.
85 Vitus Plus Carbone 7
86 ALAN Record Carbonio
86 Medici Aerodynamic (Project)
88 Pinarello Montello
89 Bottecchia Professional Chorus SL
95 Trek 5500 OCLV (Project)
Chombi1 is offline  
Old 06-16-18, 02:09 PM
  #3  
Aubergine 
Bad example
 
Join Date: Nov 2015
Location: Seattle and Reims
Posts: 2,925
Mentioned: 33 Post(s)
Tagged: 0 Thread(s)
Quoted: 775 Post(s)
Liked 21 Times in 18 Posts
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.
__________________
Keeping Seattle’s bike shops in business since 1978
Aubergine is offline  
Old 06-16-18, 02:19 PM
  #4  
DIMcyclist
No longer active
Thread Starter
 
Join Date: May 2012
Posts: 1,001
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 89 Post(s)
Likes: 0
Liked 1 Time in 1 Post
Hmmm... After reading this post on another forum:

https://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.

-

Last edited by DIMcyclist; 06-16-18 at 03:23 PM.
DIMcyclist is offline  
Old 06-16-18, 03:26 PM
  #5  
Spaghetti Legs 
Senior Member
 
Join Date: Dec 2014
Location: Central Virginia
Posts: 4,170

Bikes: Numerous

Mentioned: 101 Post(s)
Tagged: 0 Thread(s)
Quoted: 1279 Post(s)
Liked 830 Times in 370 Posts
Pivo is Russian, and other Slavic languages, for beer, so they have that going for it.
__________________
N = '96 Colnago C40, '04 Wilier Alpe D'Huez, '10 Colnago EPS, '85 Merckx Pro, '89 Merckx Century, '86 Tommasini Professional, '04 Teschner Aero FX Pro, '05 Alan Carbon Cross, '86 De Rosa Professional, '82 Colnago Super, '95 Gios Compact Pro, '95 Carrera Zeus, '84 Basso Gap, ‘89 Cinelli Supercorsa, ‘83 Bianchi Specialissima, ‘85 Pinarello Record, Ritchey Breakaway Steel, '84 Paletti Super Prestige, Heron Randonneur
Spaghetti Legs is offline  
Old 06-16-18, 03:36 PM
  #6  
non-fixie 
Shifting is fun!
 
non-fixie's Avatar
 
Join Date: Aug 2009
Location: South Holland, NL
Posts: 9,551

Bikes: Yes, please.

Mentioned: 238 Post(s)
Tagged: 0 Thread(s)
Quoted: 1660 Post(s)
Liked 1,496 Times in 763 Posts
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.

__________________
Will she ride the clunker? Look at granny run!

non-fixie is offline  
Old 06-17-18, 12:40 AM
  #7  
vintageiron
Junior Member
 
Join Date: Jun 2018
Posts: 17
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
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.
vintageiron is offline  
Old 06-17-18, 07:29 AM
  #8  
tiger1964 
Senior Member
 
tiger1964's Avatar
 
Join Date: Apr 2011
Location: Maryland, USA
Posts: 1,312

Bikes: Drysdale/Gitane/Zeus/Masi/Falcon/Palo Alto

Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 414 Post(s)
Liked 124 Times in 92 Posts
Originally Posted by Aubergine View Post
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"

Gonna do that with mine.
__________________
Larry:1958 Drysdale, 1961 Gitane Gran Sport, 1974 Zeus track, 1988 Masi Gran Corsa, 1974 Falcon, 1980 Palo Alto. Susan: 1976 Windsor Profesional.
tiger1964 is offline  
Old 06-17-18, 01:59 PM
  #9  
wrk101
Thrifty Bill
 
wrk101's Avatar
 
Join Date: Jan 2008
Location: Mountains of Western NC
Posts: 22,599

Bikes: 86 Katakura Silk, 87 Prologue X2, 88 Cimarron LE, 1975 Sekai 4000 Professional, 73 Paramount, plus more

Mentioned: 79 Post(s)
Tagged: 0 Thread(s)
Quoted: 906 Post(s)
Liked 322 Times in 242 Posts
Thats one thing I like about old Motobecane donor bikes. Often they will come with nice, forged, SR stems in French size.
wrk101 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
taguy4
Classic & Vintage
9
11-25-17 11:56 PM
billytwosheds
Classic & Vintage
15
04-30-17 08:19 PM
echo victor
Classic & Vintage
7
04-27-16 07:06 PM
JDMFanatic
Singlespeed & Fixed Gear
8
10-20-10 07:04 AM
liberalswine
Bicycle Mechanics
13
12-09-09 10:37 AM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright © 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.