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


Go Back   > >

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 10-13-03, 04:24 AM   #1
dexmax
road siklista
Thread Starter
 
dexmax's Avatar
 
Join Date: Apr 2003
Location: Perlas ng Silanganan
Bikes: Custom Knolly Chilcotin Limited Edition Orange, Dartmoor Wish, KHS 7500, Custom built Specialized Camber, S-Works Road, Cannondale Trail mtb, Polini MTB
Posts: 1,469
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
skipping chain on my middle chainring..

I am using a Deore LX crank with a shimano IG chain.

It performs ok when I'm not pushing hard on the crank. But when I'm in a rough terrain, and when I push it hard, the chain skips. This only happens when i'm on my middle chainring.. And I only noticed it skipping when my right[leg/foot] is in the downward stroke.

In todays ride, it skipped 4-5 times.

skip = when pedalling, it[crank] suddenly looses resistance, about 45-60 deg rev.

I nearly fell to my right side the last time this happend as I hammered.

Please help..
dexmax is offline   Reply With Quote
Old 10-13-03, 04:52 AM   #2
oldillini
Senior Member
 
oldillini's Avatar
 
Join Date: Jul 2003
Location: Sullivan, IN
Bikes:
Posts: 148
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I assume you have check chain length.

Had this happen with an old, stretched chain. Since I tend to use middle ring most, I too noticed it when on it and especially when getting on the pedals.
oldillini is offline   Reply With Quote
Old 10-13-03, 06:11 AM   #3
chewa
The Flying Scot
 
chewa's Avatar
 
Join Date: Aug 2001
Location: North Queensferry Scotland and London (and France)
Bikes: Custom (Colin Laing) 531c fast tourer/audax, 1964 Flying Scot Continental, 1995 Cinelli Supercorsa, Holdsworth Mistral single speed, Dahon Speed 6 (folder), Micmo Sirocco and a few more
Posts: 1,902
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Sounds like wear and tear on the middle ring/chain to me too.
__________________
plus je vois les hommes, plus j'admire les chiens

1985 Sandy Gilchrist-Colin Laing built 531c Audax/fast tourer.
1964 Flying Scot Continental (531)
1995 Cinelli Supercorsa (Columbus SLX)
1980s Holdsworth Mistral fixed (531)
2005 Dahon Speed 6 (folder)
(YES I LIKE STEEL)
2008 Viking Saratoga tandem
2008 Micmo Sirocco Hybrid (aluminium!)
2012 BTwin Rockrider 8.1
chewa is offline   Reply With Quote
Old 10-13-03, 10:16 AM   #4
Richard D
Donating member
 
Richard D's Avatar
 
Join Date: Sep 2001
Location: Faversham, Kent, UK
Bikes:
Posts: 1,852
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Shimano chainrings have a reputation for being extremely smooth shifting but quite quick wearing. You might get away with just a new chain but it does sound like a new ring might be in order.
__________________
Currently riding an MTB with a split personality - commuting, touring, riding for the sake of riding, on or off road :)
Richard D is offline   Reply With Quote
Old 10-13-03, 06:20 PM   #5
Feltup
Pain Cleanseth
 
Feltup's Avatar
 
Join Date: Mar 2003
Location: The only drug in me is beer.
Bikes: On*One Imbred (commuter), Specialized Rockcombo(commuter)
Posts: 1,061
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Are you sure it is slipping on the chainring and not on the cog? If the derailuer is to far to the left or right it can slip.
Feltup 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 11:04 PM.