Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  

Go Back   > >

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.

User Tag List

Thread Tools Search this Thread
Old 10-22-07, 12:11 PM   #1
Senior Member
Thread Starter
Join Date: Oct 2007
Posts: 97
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Swiss BB - How to use Phil Wood rings with Shimano, Miche?

I have a late 70's Motobecane with a Swiss threaded BB.

As I've pretty much given up on finding a new Swiss threaded BB, I've searched forums for possible solutions, which seem to be:

1. Get Phil Wood Swiss BB cups
2. Combine with Phil Wood sealed BB, Shimano UN72, or Miche Primato

My confusion is this, the Phil Wood sealed BB's have no threads on them, they are held in place with the cups:

All the photos I could find of the Shimano and the Miche show them WITH threads:



but I've read on here that people have used these BB with the Phil Wood rings.

My question: How? Is these some easy way to remove the threads?
Purp is offline   Reply With Quote
Old 10-22-07, 12:27 PM   #2
Stop reading my posts!
unworthy1's Avatar
Join Date: Sep 2004
Posts: 9,382
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 79 Post(s)
I seem to recall that the Phil rings do NOT work with the Miche Primato, can't remember if it's a diameter issue or what. I think you can use Phil rings with any of the Shimano units that have removable cups on both sides, but again there may be some fit issues with the width of the Shim body: you may need to run the Phil rings very deep into the BB shell. Unfortunately, the simplest solution is just buy the Phil BB, it fits and lasts, just costly is all.
To answer the question: you see that the Phil unit uses threaded "rings" which are just shorter versions of the threaded "cups" that the Shim and Miche use, they are all removable from the BB "body" (just pull off), and all 3 use a different specific tool to install/remove the units in/from your BB shell

Last edited by unworthy1; 10-22-07 at 12:33 PM.
unworthy1 is offline   Reply With Quote
Old 10-22-07, 02:24 PM   #3
Senior Member
Join Date: Dec 2005
Posts: 10,126
Mentioned: 19 Post(s)
Tagged: 0 Thread(s)
Quoted: 156 Post(s)
It's the Shimano UN-72 sealed BB that had removable rings on both sides; unfortunately, it's no longer made.

nlerner is offline   Reply With Quote
Old 10-22-07, 03:24 PM   #4
Grand Bois
Senior Member
Grand Bois's Avatar
Join Date: Mar 2005
Location: Pinole, CA, USA
Posts: 16,741
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 103 Post(s)
I tried the Miche Primato with Swiss Phil cups and it didn't work. A machinist could probably make it work, but that may cost more than a Phil bottom bracket.
Grand Bois is offline   Reply With Quote
Old 10-22-07, 03:59 PM   #5
el twe
crotchety young dude
el twe's Avatar
Join Date: Jan 2005
Location: SF, CA
Bikes: IRO Angus; Casati Gold Line; Redline 925; '72 Schwinn Olympic Paramount
Posts: 4,818
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
The Phil will probably end up being only a little more expensive than finding a NOS UN72 when you factor in BB lifespan. Those bearings last forever.
Originally Posted by CardiacKid View Post
I explained that he could never pay me enough cash for the amount of work I had put into that bike and the only way to compensate me for it was to ride the hell out of it.
IRO Angus Casati Gold Line
el twe is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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

All times are GMT -6. The time now is 08:54 AM.