Im new here, and am new to cycleing, I have'nt ridden in about 15 yrs. Anyway I am fortunate to have been able to retire at 56yrs old, that was last year, but Im really over weight 100lbs over weight!!! So I figured I'd like to be able to enjoy my retierment, so I quit smoking, and just the other day I bought me a Trek Navigater 2.0. Just recentlly I had a stress test, and was pulminairy checked, and passed both with flying colors, so Im fairly confident that I won't kill myself on my new bike. My first inclination is to get on my bike and ride it all day long every day, but since Im really bad out of shape I think the slow approach is the way to go. The first time I road my bike I only went 2 miles, when I got off the bike my legs felt like rubber!!!, Ditto for the second time, but tonight was my third ride, I took it easy, and road for 18 mins, when I finished my ride I felt tired but not out of breath, and no rubbery legs. So Im thinking maybe ride my bike about 20 min a day and increase my time by 5 min each week, Im not worried about speed or cadence yet, it will come with time, right now I just want to get comfortable on my bike and get used to the gears. What do you more experianced riders think?