Stumpjumper chainslip

Stephenjames

Hi,

I have a Specialized '08 Stumpjumper HT. Recently the chain started to slip, mostly on the middle sprockets. I took it to my local bike shop who shortened the chain, replaced the gear cable and alignned the gears. After a 12 miles ride it has started to slip again quite badly. The chainslip has become quite bad, I have shortened the chain by two links and aligned the gears once moree, but still it won't hold a gear. Any suggestions?

Thank you.

nicklouse

worn cassette. worn chain. worn chain rings.

any or all of the above.

shortening a chain will not fix worn out parts.

cooldad

But it will put money in the till. Kaching.

Stephenjames

Thanks for your input guys. Bike shop says rear derailleur cable stretch.

cooldad

In that case it just needs a tweak of the barrel adjuster. Approx 5 seconds. You don't need a shop for that, follow the link to Parktools in Nick's sig.
But in any event I would find a new bike shop.

Stephenjames

Thnx again for the info guys. The bike shop got it running like clock work after the second visit. Learnt a thing or two by chatting with the mechanic. Will check out the Parktools site.

nicklouse

So the chain was not slipping but jumping due to miss alignment

The Rookie

Some bike mechanic, try speaking to one who knows what he's doing!