I used to cycle for 12 years and was very very fit. I bought a motobike in 2012 and stopped cycling. Now 9 years later I want to start up again. I'm extremely unfit , I can cycle about 3km comfortably. I used to cycle over 30km without a problem and often would ride longer than that. I'm back and want to conquer mountains but I believe i can do that by each turn of the crank.