For a long time now I've had my eye on a Wilier Gran Turismo, and a couple of days ago I finally got around to talking to my LBS about it. However, there's a bit of a problem in that they can't get hold of one in my size for me to test
They can get hold of an Izoard XP for me (for a small fee) which I could ride. Thing is the geometries on the Izoard and the Gran Turismo aren't exacly the same (links below)
I'm looking at the XXL (lanky git!) and most of the dimensions are the same but there's a couple of differences.
My question for those with more experience of bike fitting than me is; given the difference in geometry do you think riding the Izoard will give me a good idea of whether the GT will suit me, or will I be wasting my time?
Thanks in advance!