Hey i was just wondering in cycling, how far i should try to cycle to gain some fitness. I normally do most cycling on the weekends so preferably something to base around then. Also id like to know how to gain fitness and get strength (not wanting to be overly big, just fit). Also id like this to suite the likes of the younger age 
as i dont want to have to lift heavy weights etc.
TIA
as i dont want to have to lift heavy weights etc.TIA