Im sure this has been covered but cant find anything about it here, although a google search does come up with some stuff.
Just got a road bike built up after a while of not riding (in may i was fit and riding mtb regularly) and did 30 miles today averaging 15 m/ph with moderate hills. I can do this comfortably with no aching although on xclimbs my legs begin to get tired.
My question is how fast can i build up the distance? And how is the best way to train out of these options
1. Drop my average speed right down to build up mileage fast
or
2. Very gradually increase distance trying to keep my 15m/ph average?
I cant find anything suggesting the best ways to train this online.
thanks

