I haven't been on a bike in at least 10yrs and need to get back into shape after having two kids. My husband bought me a Schwinn High Timber 2.6 fs. I realise that this bike isn't on the top of everyones want list but I love it and it suits my needs. So here's my question...Every so often when I shift gears the chain will jump. My husband thinks that I am doing something wrong when shifting but I'm not convinced. Any ideas as to what is happening here? Any info would be greatly appreciated.