shifting woes
I am new to roadbikes and I am enjoying my cannnondale immensely. But I am having trouble shifting the front gears. half the time it is smooth, some of the time it makes a clanging noise like the chain is wanting to come off, and then once every other 10 mile-ride out, the chain does come off.
I have taken it in to 4 different bike shops and they all tell me the same thing. they put it on the rack and it shifts fine. they take it out for a ride and it works fine. the last guy told me not to shift on an uphill climb, but the trails I bike are generally pretty flat. I guess it could be happening on one of the slight inclines?
I have had the derailleur adjusted and no difference.
Any ideas for a frustrated rookie?