When I'm in the middle ring on my bike, the bottom of the front dr scrapes against the big ring. I can trim it so that the dr straddles the big ring and doesn't scrape, but that isn't really a long term solution. This is a pretty new bike (two weeks old), and I'm sure that the lbs would be happy to fix it for me. However, I don't think that I'll be able to get to the store for about a week or so. How hard is this to adjust? Could I just raise the entire dr by lifting the clamp a bit? Is there a better way?
Or, do you think that it would be better to get the shop that I bought the bike to make the adjustment?