Originally Posted by
zymphad
Don't know much about Diverge.
Roubaix is RACING bike. It was designed with Boonen, winner of Paris-Roubaix to be a bike that can ridden over rough tarmac. Not to cruise around going over gravel and through woods. But to WIN RACES.
So while for most, a diverge with 25mm tire will be just as fine on tarmac as a Roubaix, the difference you asked? Roubaix is a RACING bike that can be ridden comfortably over rough roads.
Funny you should say that...my first A race next year is 106 miles, of which ~25 miles is gravel, and most of the race is through the woods. A Roubaix would do fine, a Diverge might be better still. It'll be interesting to see if one shows up.
__________________
Regards,
Chuck
Demain, on roule!