The bikes I am lookign at getting both come with a smallest gear of 30/32, and based on what I have read on these forums I need something lower. Ideally I would like to keep the crankset with the 52 at the front (I hardly ever move off it on my current bike). The place I am buying from say you can't swap the 30 for a 26 on a 52/42/30 chainring as it won't shift from 26 to 42, but I am sure I have read on the forums that people have done it successfully?
The other option I guess is to change the back - is it possible to just change the 32 for somthing bigger, or do you need to change the whole cassette? Will this cause any other problems?