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

Go Back   > >

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)

User Tag List

Thread Tools Search this Thread
Old 09-11-07, 08:25 AM   #1
Junior Member
Thread Starter
kimak13's Avatar
Join Date: Jan 2006
Location: Brooklyn, NY
Bikes: 80's Peugeot Corbier beater fixed-gear, 90's Trek 1200 Aluminum Road Bike, 05' Jamis Dakar and Trek 7000 Aluminum MTB w/ road rims/tires
Posts: 15
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Chain Tension/Rubbing Issue

I was riding my fixed gear the other day when the front wheel slid out on a right turn and the bike and I went down on our right side. The rest of the ride home I felt what I believe was the chain slipping on either the cog or the chain-ring every so often.

I assumed the slam to the pavement loosened the rear wheel, giving the chain too much slack and causing the slipping on either the cog or chain-ring. I pulled the wheel, degreased/lubed the chain and popped it back on, ensuring the chain had sufficient tension. I took a ride to make sure everything was okay, though I could hear the chain rubbing at one point during each rotation of the wheel.

Upon closer inspection I noticed that there was normal chain tension at one part of the rotation and very tight tension at another point, which was when the rubbing was occurring. It was like the cog or chain-ring was oval shaped.

I donít think this is a chain problem, as I have not had any issues with the chain before. Can you provide any ideas as to what might be causing this?

Thanks in advance for your help!
kimak13 is offline   Reply With Quote
Old 09-11-07, 08:49 AM   #2
bbattle's Avatar
Join Date: Aug 2005
Location: Rocket City, No'ala
Bikes: 2014 Trek Domane 5.2, 1985 Pinarello Trevisio, 1991 Colnago Master, '06 Bianchi San Jose, 1987 Moulton Fuso, 1990 Gardin Shred, '82 John Howard(Dave Tesch)
Posts: 12,638
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 30 Post(s)
Is your rim still true? It may have gotten a little bent on account of the crash. But on second thought, the hub should still be okay as long as it's in the dropouts even. Unless your spokes are loose.
bbattle is offline   Reply With Quote
Old 09-11-07, 02:51 PM   #3
Senior Member
pazzmore's Avatar
Join Date: Oct 2006
Location: tucson
Bikes: 2007 IRO Mark V fixed, 1971 Schwinn Spitfire stock newsie cruiser, 60's Schwinn Collegiate single speed, 1984 Azuki Imperial fixed, old unknown brand Tandem fixed.
Posts: 271
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
most likely... i think.. is that your chainring was thrown out of wack. sheldon has an article on this and offers a step by step on how to fix it. however, i tried it last night and it was kinda hard to do without any prior experience.

basically you loosen all the stack bolts to finger tight then turn the crank til the chain is taut. then, tap the chain with the back of a screwdriver or something making the chainring move slightly. then you keep doing it til it is best you can get it. then, tighten the bolts like you would lug nuts on a car. re-test it.
pazzmore 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 10:09 PM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.
  • Ask a Question
    get answers from real people!
Click to start entering your question.