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


Go Back   > >

Track Cycling: Velodrome Racing and Training Area Looking to enter into the realm of track racing? Want to share your experiences and tactics for riding on a velodrome? The Track Cycling forums is for you! Come in and discuss training/racing, equipment, and current track cycling events.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 12-14-05, 07:35 PM   #1
12XU
Dismount Run Remount etc.
Thread Starter
 
12XU's Avatar
 
Join Date: Apr 2005
Location: Some Latitude and Some Longitude
Bikes: A couple customs and some beaters.
Posts: 2,235
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Track Cog Thread Pitch

I've already done a search on BF and in Google with varying results, but I just want a crystal clear answer. Could I get a listing of the groups of cogs that will work with what hubs? I have some C-Record hubs, but I'm not sure which cogs will work in addition to the Campy one I already have. I ignorantly bought an alloy cog (NOS) which will wear down in a millisecond, but I'd like to know what cogs other than Campy I can use without cross-threading my hub. For those in the know, just make a list of which cogs have the same threading and which hubs they work with. Thanks!

-Kerry
12XU is offline   Reply With Quote
Old 12-14-05, 07:53 PM   #2
Kogswell
Matthew Grimm / Flunky
 
Kogswell's Avatar
 
Join Date: Jan 2005
Bikes:
Posts: 656
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by 12XU
I've already done a search on BF and in Google with varying results, but I just want a crystal clear answer. Could I get a listing of the groups of cogs that will work with what hubs? I have some C-Record hubs, but I'm not sure which cogs will work in addition to the Campy one I already have. I ignorantly bought an alloy cog (NOS) which will wear down in a millisecond, but I'd like to know what cogs other than Campy I can use without cross-threading my hub. For those in the know, just make a list of which cogs have the same threading and which hubs they work with. Thanks!

-Kerry
I think you're stuck w/ Campy.

Not that there's anything wrong with that.

Matthew
Kogswell is offline   Reply With Quote
Old 12-14-05, 08:04 PM   #3
12XU
Dismount Run Remount etc.
Thread Starter
 
12XU's Avatar
 
Join Date: Apr 2005
Location: Some Latitude and Some Longitude
Bikes: A couple customs and some beaters.
Posts: 2,235
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
The only thing wrong with it is the trouble with which I'll have finding cogs.
12XU is offline   Reply With Quote
Old 12-14-05, 08:43 PM   #4
baxtefer
Cornucopia of Awesomeness
 
baxtefer's Avatar
 
Join Date: Oct 2004
Location: not where i used to be
Bikes:
Posts: 4,847
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
some please correct me if I'm wrong, but isn't ISO/Italian cog threading similar enough that you can basically use any good quality cog? provided that you don't repeatedly change between types?

It's the lockring threading that's different.

stole this from sheldon brown. re. freewheels:
Code:
Type	Thread 	        Equivalent
I.S.O.	1.375" x 24 tpi	34.92 x 1.048 mm
British	1.370" x 24 tpi	34.80 x 1.058 mm
French	34.7 x 1 mm	1.366" x 25.4 tpi
Italian	35 mm x 24 tpi	1.378" x 1.058 mm
and

Quote:
Originally Posted by sheldon
ISO, English and Italian are all semi-interchangeable, but it you shouldn't go back and forth between different types of freewheels on the same hub repeatedly
baxtefer is offline   Reply With Quote
Old 12-16-05, 09:10 AM   #5
ultraman6970
Senior Member
 
Join Date: Dec 2005
Bikes:
Posts: 7,860
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
If u r using Campy hubs get I.S.O/italian cogs they will fit fine no problems so far

U have them in aluminum, titanium or regular steel, the next option is figure it out what kind of chain r u using. road one or regular bmx/track bike

Stuck with campy or shimanos those are fine althoug in the market there is a bunch of other brands that wil work fine... almost every manufacturer is useing ISO standar threads, I have seen any french thread in centuries... not even in the stores. U can even put miche cogs in a campy hub obviously u need the miche adapter...

G.luck
ultraman6970 is offline   Reply With Quote
Old 12-16-05, 11:14 AM   #6
12XU
Dismount Run Remount etc.
Thread Starter
 
12XU's Avatar
 
Join Date: Apr 2005
Location: Some Latitude and Some Longitude
Bikes: A couple customs and some beaters.
Posts: 2,235
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I just wasn't sure if Campy hubs use some sort of "deviant" English threading that is almost like English, but different enough to cause cross-threading/compromising of threads if any cogs other than Campy were to be used. Thanks for the help guys/girls.
12XU is offline   Reply With Quote
Old 12-16-05, 11:38 AM   #7
WithNail
Senior Member
 
WithNail's Avatar
 
Join Date: Jun 2004
Location: Chicago
Bikes:
Posts: 772
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by 12XU
The only thing wrong with it is the trouble with which I'll have finding cogs.
where do you find campy cogs?
WithNail is offline   Reply With Quote
Old 12-16-05, 11:43 AM   #8
11.4
Senior Member
 
Join Date: Jan 2005
Bikes:
Posts: 636
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
The lockrings (Campy, Japanese, or Mavic) are the biggest issue. However, please do note that you can have premature thread wear problems when putting a British-threaded cog on an ISO hub, or vice versa. You tend to plane off the lands on the individual threads, so they eventually become quite shallow and can strip. It's one of the more common reasons why people end up stripping threads.

Phil Wood makes a big point of this. Go to http://www.philwood.com/pproducts.htm and then click on the track hubs under the product listing. You'll get a short essay on plated cogs and ISO cogs.

Personally, I've found that when I properly match the cog to the hub, it just spins on without a hitch. When I cross-match, it goes on, but at best it needs a little force and at worst needs a chain whip. And after crossmatching I can see that the threads aren't as happy. Nothing stripped, but lesson learned.
11.4 is offline   Reply With Quote
Old 12-16-05, 12:01 PM   #9
Ceya
Guest
 
Join Date: Aug 2004
Bikes:
Posts: 3,242
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by WithNail
where do you find campy cogs?

second hand, Campy no longer makes cogs for track bikes. Their steel ones are good to go. The light alloy ones stay away they are too light and after about 3-5 rides they look like they are melting away.

Suntour and Dura Ace work with Campy.

S/F,
CEYA!
Ceya is offline   Reply With Quote
Old 12-16-05, 05:36 PM   #10
12XU
Dismount Run Remount etc.
Thread Starter
 
12XU's Avatar
 
Join Date: Apr 2005
Location: Some Latitude and Some Longitude
Bikes: A couple customs and some beaters.
Posts: 2,235
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Oooh, Dura Ace works perfectly with Campy or just kinda? I have a Campy alloy cog that will make its first and one of its last apperances at the Major Taylor drome come this spring.
12XU is offline   Reply With Quote
Old 12-16-05, 07:08 PM   #11
Ceya
Guest
 
Join Date: Aug 2004
Bikes:
Posts: 3,242
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I have 8 set of campy records (Nuevo,Super and C rec) 2 have Campy Steel cogs, 2 have Suntour and the rest are Dura Ace.

It is easy to do spin it on andlock it down then put lock ring on and ride. You will tell if it doesn't fit.

S/F,
CEYA!
Ceya is offline   Reply With Quote
Old 12-16-05, 08:37 PM   #12
bitingduck
Senior Member
 
bitingduck's Avatar
 
Join Date: Jan 2005
Bikes:
Posts: 3,054
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I have a DA 15 cog screwed on my campy hub right now (I also have DA hubs, and an old specialized Tri-spoke). It threaded on nicely and I just use the chain whip to snug it at the end.

I'm not sure there's much point to an alloy cog-- it will have to be retired to keychain duty pretty quickly.
bitingduck is offline   Reply With Quote
Old 12-17-05, 07:21 AM   #13
12XU
Dismount Run Remount etc.
Thread Starter
 
12XU's Avatar
 
Join Date: Apr 2005
Location: Some Latitude and Some Longitude
Bikes: A couple customs and some beaters.
Posts: 2,235
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Alloy cog, as explained in another thread, was a senseless 1980s weight shaving fad before titanium and carbon fiber, not that Ti or carbon fiber cogs would hold up better or anything.
12XU is offline   Reply With Quote
Old 12-17-05, 10:24 AM   #14
bitingduck
Senior Member
 
bitingduck's Avatar
 
Join Date: Jan 2005
Bikes:
Posts: 3,054
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
It's kind of silly to shave weight on a track bike right now anyway with the current UCI rules. I know people who don't have particularly lightweighted bikes who had to add mass to their bike at nats -- things like taping wrenches to the top tube.

I ride a heavy-ass steel Pinarello, but it's stiff and indestructible.
bitingduck is offline   Reply With Quote
Old 12-17-05, 12:15 PM   #15
Mike T.
Upstanding member.
 
Mike T.'s Avatar
 
Join Date: May 2005
Location: Ontario Canada
Bikes: Argon18 road, Seven mtb, Marinoni track, Masi dirt road bike, Marinoni cyclocross.
Posts: 446
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by 12XU
I'm not sure which cogs will work in addition to the Campy one I already have.
All I can say on the subject is this - both my DuraAce cog and my Miche splined system work just fine on my Campagnolo hub.
Mike T. is offline   Reply With Quote
Old 12-19-05, 08:58 AM   #16
ultraman6970
Senior Member
 
Join Date: Dec 2005
Bikes:
Posts: 7,860
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Campy, miche and Shimano titanium cogs work fine over either on campy, miche or shimano durace track hubs.

As somebody said, the problem are the lock rings some of them are somehow different so be carefull with that ok?

ultraman6970 is offline   Reply With Quote
Reply


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 02:49 PM.