Bike Forums

Bike Forums (https://www.bikeforums.net/forum.php)
-   Classic & Vintage (https://www.bikeforums.net/classic-vintage/)
-   -   V-O french-thread BB.... (https://www.bikeforums.net/classic-vintage/1253792-v-o-french-thread-bb.html)

ehcoplex 06-20-22 08:36 AM

V-O french-thread BB....
 
OK, I just want to make sure I'm not missing something here...... Recently got a V-O French BB for a build. Labeled French on the box, on the body of the BB, the flange of the drive side says "FRENCH 35x1 REMOVE COUNTER CLOCKWISE", but....... the threading on that side of the BB is left-handed. It should be right-hand threaded on both sides, right? Will contact V-O, but just want to be sure I'm not somehow confused...

noobinsf 06-20-22 08:40 AM

Yes, French is right-hand threaded on both drive and non-drive side, and it should be removed by turning counter clockwise. Which bike is this for? Are you sure the bike is French threaded?

ehcoplex 06-20-22 08:43 AM

Yup, Valgan Vitus 971 frame. The Stronglight BB that came out of it (tragically very pitted...) is right-handed on both sides. Seems like maybe there's been a factory error with the BB.....

oneclick 06-20-22 09:19 AM

Swiss threading is 35x1 and fixed cup left-hand.

Check that the adjustable cup fits, if it does, Swiss is what you need.

ehcoplex 06-20-22 09:45 AM


Originally Posted by oneclick (Post 22547920)
Swiss threading is 35x1 and fixed cup left-hand.

Check that the adjustable cup fits, if it does, Swiss is what you need.

Threading in the BB shell is right-handed on both sides, so yes, the right-hand-threaded NDS/adjustable cup fits (both sides). Problem is the labeled-as French BB from V-O is left-hand-threaded on the drive side.

balindamood 06-20-22 01:49 PM

You might be the only person in history to "mistakenly" get a Swiss-threaded bottom bracket. One of the 17 people on the planet with Swiss-threaded frames may hunt you down.

polymorphself 06-20-22 04:36 PM


Originally Posted by balindamood (Post 22548311)
You might be the only person in history to "mistakenly" get a Swiss-threaded bottom bracket. One of the 17 people on the planet with Swiss-threaded frames may hunt you down.

This happened to me two years ago.

ehcoplex 06-20-22 05:55 PM


Originally Posted by polymorphself (Post 22548472)
This happened to me two years ago.

Also from Velo Orange?

balindamood 06-20-22 06:09 PM


Originally Posted by polymorphself (Post 22548472)
This happened to me two years ago.

How is it possible that the only two remaining Swiss BB cups on the planet BOTH went to the wrong place?

Wait! Maybe it is the same set of BB cups...

repechage 06-20-22 10:01 PM

The VO French threaded BB I bought a while ago was correct, "RH" thread both sides.

I tried to use it but on TA cranks - the cranks walked in too much. The spindle is polished and plated on mine. I prefer coarser machined.

I never took it up to torque, 45 nm

ehcoplex 07-05-22 03:18 AM

As a follow up- contacted V-O and they sent a correct BB & return shipping label for the mis-marked, wrong one.

In both cases, however, the bearings seem really stiff. Like, really stiff... Is that normal for sealed bearings in a BB?

El Chaba 07-05-22 04:57 AM

This whole ordeal is not an atypical Velo Orange experience, unfortunately….

JohnDThompson 07-05-22 07:03 AM


Originally Posted by ehcoplex (Post 22564051)
In both cases, however, the bearings seem really stiff. Like, really stiff... Is that normal for sealed bearings in a BB?

Not unusual for new bearing cartridges. Until the seals wear in, they can feel stiff. But unloaded stiffness from seal drag really has no effect on loaded performance.

ehcoplex 07-05-22 08:16 AM


Originally Posted by JohnDThompson (Post 22564121)
Not unusual for new bearing cartridges. Until the seals wear in, they can feel stiff. But unloaded stiffness from seal drag really has no effect on loaded performance.

That's what I was hoping/thought.

repechage 07-05-22 09:52 AM


Originally Posted by JohnDThompson (Post 22564121)
Not unusual for new bearing cartridges. Until the seals wear in, they can feel stiff. But unloaded stiffness from seal drag really has no effect on loaded performance.

think of all those lost watts in the seals scraping.

SurferRosa 07-05-22 11:26 AM


Originally Posted by balindamood (Post 22548311)
One of the 17 people on the planet with Swiss-threaded frames may hunt you down.

17? I bet there are thousands of pre-'79 Motobécanes out there.


All times are GMT -6. The time now is 10:13 AM.


Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.