Go Back  Bike Forums > Bike Forums > Singlespeed & Fixed Gear
Reload this Page >

Differences in cogs?

Search
Notices
Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

Differences in cogs?

Thread Tools
 
Search this Thread
 
Old 09-10-07, 03:56 PM
  #51  
Senior Member
 
Join Date: Jun 2007
Posts: 263
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
I never even thought of using a monkey wrench. I use them all of the time at work, and boy are they versatile. I promise you that I can get more foot pounds out of a 30" monkey wrench than anyone can get out of a lockring tool. Also, 30 ft. lbs. isn't much at all, a lug nut is tight at 80-110, not that that matters since noone uses torque wrenches anyhow.
AStomper is offline  
Old 09-10-07, 04:08 PM
  #52  
THIS SPACE FOR RENT
 
Join Date: Jan 2006
Posts: 2,849
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 1 Time in 1 Post
Other that weird junk some shop has in the bottom drawer and the stuff that comes on half the off the peg bikes, can you even buy a stamped cog any more? I've never seen one for sale.
Landgolier is offline  
Old 09-11-07, 09:00 AM
  #53  
Boston did not sob
Thread Starter
 
9Rings's Avatar
 
Join Date: Jul 2007
Posts: 377
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
You obviously shop at a boutique LBS. regular bike shops are always willing to sell you junk for $15 a pop.
9Rings is offline  
Old 09-11-07, 09:12 AM
  #54  
Invented the Skid Salute
 
lamalex's Avatar
 
Join Date: Aug 2007
Location: Philly
Posts: 370

Bikes: EAI Bareknuckle, Schwinn Tandem, Specialized Metal Matrix Comp, Peugeot UO8

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by Gyeswho
since this is about cogs, is an EAI cog safe to use on a phil wood hub? since phil talks about cog threading on the site, i really don't want to spend $40+ on a phil cog when I can get an EAI for much less.
I have an EAI on my Phil, so yes. yes you can.
lamalex is offline  
Old 09-11-07, 09:30 AM
  #55  
White Whale
 
Join Date: Feb 2007
Location: St Pete
Posts: 119
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by 11.4
Anyway, hope that helps.
Thank you. Nice post.
michael 66 is offline  
Old 09-11-07, 09:41 AM
  #56  
the goal
 
Join Date: Feb 2005
Location: Brixton, London
Posts: 457

Bikes: Bob Jackson track

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
A couple of ways in which the cheapness of cheap cogs shows itself and which I have experienced:

A cog that was too thin to adequately fill the gap between hub flange and lockring. The cog could unscrew about a turn with the lockring fully tightened. You don;t need to be an awesome skiddar for this to be a problem.

A cog which had an off centre hole leading to varying chain tension.

I think that is the only thing IO can add to 11.4s informative post, but it helps to illustrate how the cost savings are reflected in the quality of the end product.
Momentum is offline  
Old 09-12-07, 12:08 PM
  #57  
THIS SPACE FOR RENT
 
Join Date: Jan 2006
Posts: 2,849
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 1 Time in 1 Post
Originally Posted by 9Rings
You obviously shop at a boutique LBS. regular bike shops are always willing to sell you junk for $15 a pop.

Generally yes, shops will sell you junk, but where are they getting them? I can't even find a stamped cog from any of the wholesalers I have access to. Like I said, there's always a drawer full of old stuff like this in every shop, but where else would you even get one?
Landgolier is offline  
Old 09-12-07, 12:36 PM
  #58  
Boston did not sob
Thread Starter
 
9Rings's Avatar
 
Join Date: Jul 2007
Posts: 377
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
All I know is I bought a no-name cog for $15. It doesn't look like junk, snugged up nice and tight, seems to run fine so far, and as long as I don't ride in Retem's neighborhood, Im good to go.
9Rings is offline  
Old 09-12-07, 09:38 PM
  #59  
Full Member
 
geoffs's Avatar
 
Join Date: Sep 2004
Location: Sydney
Posts: 322

Bikes: Co-Motion Mocha Co-pilot, Habanero custom commuter, Seven Axiom SL, Seven Axiom SLX, Blom Track

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 79 Post(s)
Liked 12 Times in 10 Posts
All I know is that I used a cheap no-name cog on my hub and I stripped the thread off the hub going up a short steep hill. I read on Phil woods site that A stamped cog may only have a few threaded engaged on the hub, whereas a miched cog will have all it's threads engaged.
After a long walk home and a new hub, I'll only be using machined cogs such as Dura-ace or EAI.
I should qualify this by saying that I'm 215lbs so I might put out a bit torque than some people.

Cheers
Geoff
geoffs is offline  
Old 06-18-08, 09:55 PM
  #60  
Senior Member
 
BaronDapcher's Avatar
 
Join Date: Jun 2008
Location: Cutchogue, NY
Posts: 88
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Cog query

Here is my problem:
Running a 3/16 KMC chain on a 1/8 16t stamped low-end cog. I like the chain and prefer to keep it; had too much stretching on 1/8 chains. The inner pins on the chain rub up against the spokes and it is annoying. Tick-tick....tick...tick-tick-tick. There are 2 threads left on the Formula hub for the lockring.
Putting the hub on a new frame and will adjust the chainline later.

Question(s): How can I get the cog to be 2 mm further away from the spokes? I have been told that a spacer would take away threads for the cog.
Who makes the widest threaded cogs? Dura-ace looks like they are recessed for a lockring. Surly and Rockwerks look the widest. Anyone have any specs? Couldn't find them on Sheldon Brown.
BaronDapcher is offline  
Old 06-19-08, 07:15 AM
  #61  
Senior Member
 
craigmoyer's Avatar
 
Join Date: Dec 2007
Location: Cincinnati, Ohio
Posts: 196

Bikes: FrankenBike

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by Landgolier
Other that weird junk some shop has in the bottom drawer and the stuff that comes on half the off the peg bikes, can you even buy a stamped cog any more? I've never seen one for sale.
Sure can. Benscycle sells formula cogs, which are definately stamped, and real cheap for that matter.
craigmoyer is offline  

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

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