Quote Originally Posted by Caddy View Post
I believe that the Shimano Tiagras and Soras shift like Campagnolos, with a separate thumb shifter. I don't remember how large the hoods are. However, 105s and above use the 2:1 shifting, which is an issue for small hands.

And what do you mean shim-able? Does that shorten the reach?
I don't know that Tiagra's like that, but Sora and whatever that one below Sora is do have that thumb shifter. I do have trouble shifting into the big ring, but that's not a reach issues--that's a force issue related to the fact it's a cheap triple with cheap shifters.
I did test-ride a 105-equipped Roubaix (so it has "normal" reach) and it was a little bit of a stretch to shift, so hopefully proper shimming would take care of it.