Originally Posted by
I_bRAD
You can get good front shifting with a $5 derailleur. Before you start spending your money, make sure it's set up properly.
+1 The Sora and the Tiagra are a bit more forgiving then their more expensive brethren. The plates are further apart and the plates themselves are thinner. This means that you have more room before the chain rubs in certain gear combinations. 105 and Ultegra are much more finicky to set up.