Chainring slip due to wear?
10-02-12, 04:30 PM
#1
Junior Member
Thread Starter
Join Date: Jul 2010
Location: Oxford
Posts: 24
Bikes: Cheap-ass road bike...
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Chainring slip due to wear?
Hello all,
I was wondering what were the common causes for the chain to slip off the chainring. At first I thought it was wearing of the teeth (mine are a bit pointy), but now I'm wondering if chain wear might play a role (the chain is as old as the chainring).
Any feedback would be greatly appreciated.
Uplah
I was wondering what were the common causes for the chain to slip off the chainring. At first I thought it was wearing of the teeth (mine are a bit pointy), but now I'm wondering if chain wear might play a role (the chain is as old as the chainring).
Any feedback would be greatly appreciated.
Uplah
10-02-12, 05:07 PM
#2
Senior Member
Join Date: Aug 2005
Location: Pittsburgh, PA
Posts: 33,656
Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!
Mentioned: 39 Post(s)
Tagged: 0 Thread(s)
Quoted: 2026 Post(s)
Likes: 0
Liked 1,096 Times
in
742 Posts
What do you mean by "slip off"? If you mean it spills off sideways to the the inside or outside, that's usually a limit screw adjustment or a bad chainline issue. If it "skips" then the ring and/or chain may be badly worn.
10-02-12, 08:55 PM
#3
Senior Member
Join Date: May 2012
Location: Westchester County, NY
Posts: 1,299
Bikes: Giant TCR SL3 and Trek 1.5
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
Likes: 0
Liked 2 Times
in
2 Posts
Hello all,
I was wondering what were the common causes for the chain to slip off the chainring. At first I thought it was wearing of the teeth (mine are a bit pointy), but now I'm wondering if chain wear might play a role (the chain is as old as the chainring).
Any feedback would be greatly appreciated.
Uplah
I was wondering what were the common causes for the chain to slip off the chainring. At first I thought it was wearing of the teeth (mine are a bit pointy), but now I'm wondering if chain wear might play a role (the chain is as old as the chainring).
Any feedback would be greatly appreciated.
Uplah
I'm guessing your cables are stretched and need tightening. Your chain can absolutely wear out, but that generally won't happen until 3,000 miles or thereabouts, although your mileage may vary.
What kind of bike and drivetrain do you have?
10-03-12, 07:52 AM
#4
Senior Member
Join Date: Aug 2005
Location: Pittsburgh, PA
Posts: 33,656
Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!
Mentioned: 39 Post(s)
Tagged: 0 Thread(s)
Quoted: 2026 Post(s)
Likes: 0
Liked 1,096 Times
in
742 Posts
Chain and tooth wear is a real problem with freewheel/cassette cogs but a chainring and chain have to be VERY badly worn to skip. I've got chainrings with over 25,000 miles that have been used with chains that went 7000 - 8000 miles each and they still shift well and run reliably.
10-03-12, 09:33 AM
#5
Senior Member
Join Date: Aug 2012
Location: Colorado Springs
Posts: 1,134
Bikes: Borealis Echo, Ground Up Designs Ti Cross bike, Xtracycle, GT mod trials bike, pixie race machine
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Likes: 0
Liked 2 Times
in
2 Posts
Make sure your limits are set well and check your chain wear. Here is a good link on all of the above. https://sheldonbrown.com/chains.html#wear
10-04-12, 01:57 PM
#6
Junior Member
Thread Starter
Join Date: Jul 2010
Location: Oxford
Posts: 24
Bikes: Cheap-ass road bike...
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Hi,
Apologies for the late reply - long days in the lab...
Anyway, the problem I have is when I exert a lot of force (i.e., when I set off from a standstill) the chain tends to skip on the chainring, and sometimes it just slips off completely to the inside. I have already adjusted the front dérailleur and replaced the gear cable - the cage has been positioned to try and prevent the slippage but it doesn't seem to help (even when it's actually lightly brushing against the chain).
I have a cheapo road bike which has done about 10,000 miles. The teeth are perhaps beginning to look a bit pointy and the chain shows some lateral flex... I will check out the link above. I specifically asked about the chain because I was thinking of replacing it with a spare I have from a previous bike...
Cheers,
Uplah
Apologies for the late reply - long days in the lab...
Anyway, the problem I have is when I exert a lot of force (i.e., when I set off from a standstill) the chain tends to skip on the chainring, and sometimes it just slips off completely to the inside. I have already adjusted the front dérailleur and replaced the gear cable - the cage has been positioned to try and prevent the slippage but it doesn't seem to help (even when it's actually lightly brushing against the chain).
I have a cheapo road bike which has done about 10,000 miles. The teeth are perhaps beginning to look a bit pointy and the chain shows some lateral flex... I will check out the link above. I specifically asked about the chain because I was thinking of replacing it with a spare I have from a previous bike...
Cheers,
Uplah
10-04-12, 02:06 PM
#7
Banned
Old Chain wear .. wears out everything it goes around. so if you replace the chain
more often, the other parts last longer.
now, you buy a new rear gear set, cassette of freewheel , new chainrings and a new chain.
more often, the other parts last longer.
now, you buy a new rear gear set, cassette of freewheel , new chainrings and a new chain.
10-04-12, 07:41 PM
#8
Junior Member
Thread Starter
Join Date: Jul 2010
Location: Oxford
Posts: 24
Bikes: Cheap-ass road bike...
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Thread
Thread Starter
Forum
Replies
Last Post
Doctor Morbius
Bicycle Mechanics
19
10-08-17 08:50 PM
