Hardcase Tires?
I'm just waiting to test ride (need some better weather) several Trek Pilots - 1.2, 2.1, 2.1 s.p.a. - I see from the specs that the 1.2 comes with 28c race lite hardcase tires. What are the advantages/disadvantages of this over the race lite 25c found on the 2.1 and 2.1 s.p.a.?