And if you come off don't blame Rob.Suck it and see, try railing each one round a tight bend!
Bike tyres can't aquaplane in the wet. Well not until you reach about 100mph that is.
You will be totally fine on a road bike in the wet. Slick road tyres have more grip on the tarmac then knobbly MTB tyres.
Just be careful around drains and painted lines.
I prefer road bikes brakes in the wet, for me they are more moduable (is that a word or have I just made it upNobody's mentioned brakes yet, they twice as long to stop in the wet. A new cyclist may not realize this.
Road bikes tend to have caliper brakes to save weight, Mountain bikes have more powerful linear pull ones. They'd definitely be an advantage in the wet.
This maybe "modulable" French for being capable of modulatedI prefer road bikes brakes in the wet, for me they are more moduable (is that a word or have I just made it up)