I spent the last year getting new and used parts off of ebay fixing up this Trek 420 from the early 80's. It was a long and tedious affair, but it familiarized me with a lot of different aspects about the road bike; cranksets, cassettes, and BB's just to name a few.
I've had the bike for only a couple of weeks now with all of these new upgrades and I was wondering if anyone could steer me in the direction of a work out. I bike to and from work which is only 4 miles away on very flat terrain so it's a short 20 min ride. Should I be going on longer rides after work? I've noticed that my legs are tired almost as soon as I start biking home in the evenings: How long is it going to take for my legs to strengthen up so I can bike harder?
I don't have any work out goals per se, but I would like to start going on longer rides on the weekends, maybe 3 or 4 hour ones? Any and all help would be awesome. Thanks!
Campy set up.