Hi all I would appreciate some help with this! My bike chain (on a Raleigh Record Sprint 501 racer) recently snapped and I lost the pins. I had a new chain fitted at a bike shop but on some sporadic occasions the chain keeps slipping at the rear while pedalling and attempting to shift gear. This makes my bike unreliable and quite unsafe especially at road junctions when I need to keep cycling steadily and not grind to a halt!!!
The chain has slipped both on downshifting as well as upshifting. I noticed that the problem seems to be that the chain does not always go into the rear sprockets but remains somewhat on top of the spikes of a sprocket. This means the pedals turn in a void since the chain fails to engage with the sprocket it is on. My bike is 10speed. I now looked up the chain packet label which I had kept and it says "Index 5, 6 & 7 speeds HG/UG". Does this mean that the chain might not be compatible with my 10speed gear system? How can I make sure the chain I have is the right one to fit my sprockets? Any other ideas what could be wrong?
Pardom me Sir I didnt mean to hi-jack your thread. I have the same problem so I hope you dont mind me jumping in your boat. But mine is a new bike and Iv been using it for two weeks now........I know you might say to bring the bike back to the shop. My problem is it is 124 miles north of my place and my question is. What is the quick fix or how can I adjust it. Thanks again.🙂
Pardom me Sir I didnt mean to hi-jack your thread. I have the same problem so I hope you dont mind me jumping in your boat. But mine is a new bike and Iv been using it for two weeks now........I know you might say to bring the bike back to the shop. My problem is it is 124 miles north of my place and my question is. What is the quick fix or how can I adjust it. Thanks again.🙂
Quite posssibly 2 separate problems. Yours may be rear derailer adjustment. Possibly a simple cable tension adjustment.See the repair section at www.parktool.com The other poster may have a new chain on a trashed cassette.
Hi all I would appreciate some help with this! My bike chain (on a Raleigh Record Sprint 501 racer) recently snapped and I lost the pins. I had a new chain fitted at a bike shop but on some sporadic occasions the chain keeps slipping at the rear while pedalling and attempting to shift gear. This makes my bike unreliable and quite unsafe especially at road junctions when I need to keep cycling steadily and not grind to a halt!!!
The chain has slipped both on downshifting as well as upshifting. I noticed that the problem seems to be that the chain does not always go into the rear sprockets but remains somewhat on top of the spikes of a sprocket. This means the pedals turn in a void since the chain fails to engage with the sprocket it is on. My bike is 10speed. I now looked up the chain packet label which I had kept and it says "Index 5, 6 & 7 speeds HG/UG". Does this mean that the chain might not be compatible with my 10speed gear system? How can I make sure the chain I have is the right one to fit my sprockets? Any other ideas what could be wrong?
Chain should be compatible. All derailer chains are the same 3/32" inside width,and that is the dimension that fits over the cogs.
Quite posssibly 2 separate problems. Yours may be rear derailer adjustment. Possibly a simple cable tension adjustment.See the repair section at www.parktool.com The other poster may have a new chain on a trashed cassette.
Thank you very much for the reply on my query I realy appreciate it Sir.😄
Thanks for your interest. I'm glad the chain is compatible - this eliminates 1 possible cause! The strange thing is that I took the bike for substantial refurbishment to a good bike shop about 4 weeks ago and nothing wrong was found with gear system, cogs, and chain. The chain snapped 2 weeks later and I took it to another shop closer to me to have a new chain fitted. I'll examine the link you posted, if it's not relevant to my problem I'll take the bike again to the "first" shop for re-examination. Thanks alot for your help.
Hi all I would appreciate some help with this! My bike chain (on a Raleigh Record Sprint 501 racer) recently snapped and I lost the pins. I had a new chain fitted at a bike shop but on some sporadic occasions the chain keeps slipping at the rear while pedalling and attempting to shift gear. This makes my bike unreliable and quite unsafe especially at road junctions when I need to keep cycling steadily and not grind to a halt!!!
The chain has slipped both on downshifting as well as upshifting. I noticed that the problem seems to be that the chain does not always go into the rear sprockets but remains somewhat on top of the spikes of a sprocket. This means the pedals turn in a void since the chain fails to engage with the sprocket it is on. My bike is 10speed. I now looked up the chain packet label which I had kept and it says "Index 5, 6 & 7 speeds HG/UG". Does this mean that the chain might not be compatible with my 10speed gear system? How can I make sure the chain I have is the right one to fit my sprockets? Any other ideas what could be wrong?
Hi, There is an excellent article here that might explain your problem. Only recently did I learn that the replacement of a chain often necessitates the replacement of the rear cog stack. Once it was pointed out to me it actually made sense. The chain and the gears wear together, the wear on the chain matching the wear on the cogs. Replacement of the chain means that the chain no longer matches the gears, the mismatch can cause skipping. You might want to discuss this possibility with your bike shop mechanic.
Thanks for your interest, Paiyili. Yes, I read the article and must say, I've been convinced that its the probable cause/explanation to my problem. I'm off to the bike shop this weekend - hopefully I'll be able to fix the problem once and for all and get myself back on the road!
The exact same thing happened to me. A new chain on an old bike meant a new cassette. Pretty standard if you haven't been changing your chain all along. Mine was a used bike so I didn't know.
