Originally Posted by
Longhi93
I'm aiming toward long road rides and mountain biking/ trails.
Just make sure as you work on technique it leans towards high cadence/low torque until your 'fine' support muscles are good and strong. It'll save on your knees. Holding good form is really important. Speed will increase as a natural outgrowth. Go on group rides w/roadies...they'll teach you good and fast. Former runner here as well.
Btw, welcome to the forums!