Small cog jumping – excuse the numpty question!
Thanks guys, yes rear mech alignment was my second thought (happened before). I have folk coming round soon so need to have another look in the morning. I guess if it’s only the one cog (in he past bent hanger was 2-3 cogs), it should be an easy tweak? As the lBS said before a bit of cold bending!!!
Just watched the park tool video – don’t have one of their alignment gauges so may need to be careful in the morning!!Posted 4 years ago
Half way thru my ride this afternoon, my chain starts jumping around in the smallest rear cog in both middle and big front rings. It started a few minutes after getting a whole load of bracken snagged in there. Gave it an “on-trail” clean but couldn’t solve the skipping. Not sure if the teeth are worn (cassette about 9-12 months old) or if there is something else I should be checking.
Appreciate this is a v basic question but I am a mechanical numpty. Any ideas that I should check before visiting LBS?Posted 4 years agocitizeninsaneMember
I bought one of these to do the job last week.
If you use it twice, it’s paid for itself.
Worked a treat. Align vertically, then horizontally. Take it easy and do a little at a time (no ham fisting!), checking after each ‘manipulation’.Posted 4 years ago
Popped into LBS (not normal one as it is a Sunday) and couldn’t find anything wrong. Fine in the stand but after a little tweaking only slight skip in the big ring but more occassionally when ridden down the road. Not sure what the answer is. Unsurprisingly, the LBS went for the default new cassette option. Not sure that is correct given that it is now only happening more occassionally in big ring and not in middle ring any more. Sigh…..Posted 4 years ago
Thanks, but we checked the chain and it’s ok!
So far tried – clean the bike (!), check alignment/hanger etc, check limiting screws, check chain, check cables, check teeth on cog.
There is “some” slight wear on the cogs/teeth and I have ridden a lot this summer, but not as much as normal when the chain starts to skip.Posted 4 years ago
Yes, probably worn in the end. But will have another clean and a quick ride to see if it is any better first. I thought with the dry summer that cassettes would last a bit longer this year. Having said that I have ridden a lot.
At least, if the pro mechanics couldn’t spot the problem, I dont feel such a numpty!!!
But no, I dont have another cassette/wheel. If there is still a problem later, I will take the LBS’ word for it!!! 😉Posted 4 years ago
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