No such thing as too harsh on bad roads really. It can all be tuned through wheel, tyre, bar, saddle choices and is affected by rider weight.
Not so sure on that.
Take the Scott Foil as example; incredibly aero frame but is savagely rigid with a aero seatpost that isn't forgiving in the slightest. Even with your choice of saddle, bars and a pair of shallow rims running 3 cross spokes it will still be a harsh ride on the rutted Tarmac of UK B roads.
Compare that to a Cannondale SuperSix Evo; a non aero frame which runs a 27.2 post and has delicate seatstays.
Not so sure on that.
Take the Scott Foil as example; incredibly aero frame but is savagely rigid with a aero seatpost that isn't forgiving in the slightest. Even with your choice of saddle, bars and a pair of shallow rims running 3 cross spokes it will still be a harsh ride on the rutted Tarmac of UK B roads.
Compare that to a Cannondale SuperSix Evo; a non aero frame which runs a 27.2 post and has delicate seatstays.
I know which I'd rather ride at the weekend.