I'm thick when it comes to bikes by the way, hence me asking for help!
I have a Ridgeback bike, not used it very much, cost me quite alot.
I took the bike for a service to my local bike shop and they fixed a few things, however, my chain feels like it slips when I'm out on it. The guy in the shop said it was the gear wire, stretching, and he told me to turn a little knob on the gear thing. I do that, but it's not helping, I think there's something wrong with my chain... What do all you experts think?