Mine is a glorified road bike anyway, it has a shorter more road geometry (compared to the generally longer CX/gravel), road 'gearing' (currently 50/34 but had 52/36 and 53/39 on there) and with guards the clearance restricts me more to road type slicks than anything off-road-y. Currently running 32mm (tubeless).Some great machines in here. How are people finding gravel bikes for on road speed, compared to a regular road bike (obviously massively dependent on tyre choice, so interested in average speeds for particular tyres). Seems to be if there's one bike that can do it all, these are it.
I find mine fast, but I don't have an 'equal' road bike to compare it to (my other bike is an alu Giant Defy running 105). The Diverge is probably a little more flexible a frame than a stiff race frame so probably gives up some when sprinting/out the saddle, it isn't really a modern aero machine (although my rims are quite deep, any benefit is wiped out by them being wider), it's carrying a little more weight but I've offset much of that with my upgrades and at around 10kg with wide tyres and metal guards it isn't heavy. Equally the comfort of beings able to ride it how I want over whatever road-surfaces I find probably keeps my overall speeds higher than they would be on super skinny 23mm's. Basically it's a tough one to call without comparable bikes to ride. And my Diverge is a little bit too much of a 'do it all' machine for me to have another similar, but just slightly more road orientated frame like a Tarmac/Roubaix/Defy. A more gravel orientated machine there may be a (barely) noticable difference to those...
Is not slow! Also good at hills and even exploring across fields.