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 11-14-08, 08:46 AM   #1
Senior Member
Thread Starter
lagrassa's Avatar
Join Date: Oct 2008
Location: Albuquerque NM
Bikes: 2003 Colnago Asso 1982(?) Guerciotti
Posts: 83
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Freewheel Threads?

I searched Sheldon Brown's info but I could not find the answer to my question:

Are Italain and English threaded freewheels/hubs compatible?

lagrassa is offline   Reply With Quote
Old 11-14-08, 09:31 AM   #2
Stop reading my posts!
unworthy1's Avatar
Join Date: Sep 2004
Posts: 9,675
Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 155 Post(s)
They are virtually the same diameter and the same TPI, the difference lies in the actual *angle* of the individual thread. So the rule of thumb is to always use the same combination once and forever. For example: you put an English [AKA BSC or ISO] threaded FW on an Italian threaded hub, you always replace that FW with one of the same threading, never with an Italian threaded FW. The reason is that the softer aluminum threads on the hub shell will be slightly re-formed by the harder steel threads on the FW, if you use the different thread afterward the aluminum will not hold up to being re-formed back again and likely will strip: your hub will be toast.
unworthy1 is online now   Reply With Quote
Old 11-14-08, 10:46 AM   #3
John E
feros ferio
John E's Avatar
Join Date: Jul 2000
Bikes: 1959 Capo; 1980 Peugeot PKN-10; 1981 Bianchi; 1988 Schwinn KOM-10;
Posts: 17,658
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 240 Post(s)
unworthy1's post concurs with my understanding of the English-Italian freewheel thread issue.
"Early to bed, early to rise. Work like hell, and advertise." -- George Stahlman
Capo [dschaw'-poe]: 1959 Modell Campagnolo, S/N 40324; 1960 Sieger, S/N 42624
Peugeot: 1970 UO-8, S/N 0010468
Bianchi: 1981 Campione d'Italia, S/N 1.M9914
Schwinn: 1988 Project KOM-10, S/N F804069
John E is offline   Reply With Quote
Old 11-14-08, 01:09 PM   #4
Charles Wahl
Disraeli Gears
Charles Wahl's Avatar
Join Date: Jul 2007
Location: NYC
Posts: 3,158
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 38 Post(s)
If you really searched Sheldon, you would have found that he says it's perfectly fine to use an English freewheel on Italian, and vice-versa; but he recommends not switching back and forth, presumably because it does mung up the threads a bit.

I thought you kids were supposed to be good at finding stuff on the Internet.
Charles Wahl is online now   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 06:11 PM.