Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.

New: Take Part in the February Giveaway for a Chance to Win 2x METRO Hybrid Bikes

Another chain skipper!
Hi Guys, as i couldn't find my exact situation i thought i'd best post up.

i recently replaced my chain and have since been having a right nightmare when riding as it keeps jumping forward on every downstroke.

the chain isn't skipping gears or anything it is just lurching forward, i have checked for loose cranks, bottom bracket etc and they are all fine. when trying to diagnose the problem thou it is very difficult as the problem only appears under load. when i was testing it out thou i could look down and see that the rear derailleur lowest jockey wheel was pulling forward 2-3 inches and then suddenly jerking back and this was what was causing my chain to skip and making the bike unridable really. i commute 30 miles every day.

i rang evans cycles and spoke to the bloke there who said it was because i hadn't replaced my rear cassette at the same time as replacing the chain but i doubt it is the cassette as that was working perfectly fine with my old chain...

any ideas guys as I'm properly stumped here....
Chains and cassettes tend to wear into each other and it is quite common to get skipping after replacing one and not the other as the cog teeth and chain don't line up anymore. This isn't the only possible reason, but it is very common. I suspect the jockey wheel movement is being caused by the chain slipping and not the other way around.
Dave is correct

Forum Jump:

10 Latest Posts
1990 Specialized Rockhopper How to Fluff...
Today 10:24 AM
Chain sits on top of chainring when shif...
Today 07:28 AM
New Wheel Question
Yesterday 11:26 PM
Flat Repair Tools
02-23-2024 11:20 AM
How to keep your bicycle safe?
02-23-2024 11:05 AM
Dent on a new bicycle frame
02-22-2024 11:17 PM
My inexpensive strong 29 inch wheel
02-22-2024 11:01 PM
Modern rims crack at spoke holes
02-22-2024 10:00 PM
Why do spokes break?
02-22-2024 12:10 PM
Staying Active as the Wet, Cold & Darkne...
02-22-2024 11:48 AM

Join BikeRide on Strava
Feel free to join if you are on Strava: www.strava.com/clubs/bikeridecom

Top 5 Posters This Month
no avatar 1. GirishH
25 posts
no avatar 2. enkei
21 posts
no avatar 3. ReapThaWhirlwind
17 posts
no avatar 4. Jesper
14 posts
no avatar 5. ichitan
13 posts