yeah, was just looking at the specs on specialized site, def VERY close in geometry between the two bikes, I guess I'd need to price out all the components I'd need to switch out, just seems like the cost of parts would exceed the cost of selling my bike and buying a new one. i'd def need to swap out the cassette as well since the sirrus has an 8 spd, to get decent road components I'd need a new cassette and then new derailer. add that to brifters ($300ish and I'm easily over $500 in stuff to add on to the bike. and then I feel like I'd have an ok bike but not a great bike.