Originally Posted by chriskitch

I'm 5'10" as well and I tend to look for bikes with a 55cm top tube as a starting point but you really won't know if the bike fits until you try it...
Besides, test riding is fun...and an excellent way to check the work of a given shop's mechanical staff...
I chose not to buy a Bianchi last summer because of the horrible way it was set up at the only store that had them in stock in downtown Toronto (creaky BB, wheels not trued, poor chain tension etc.)...