Probably won't make any friends with this post but....
you know how as you get older you don't let "political correctness" get in the way?
Here's my rant....to me, it seems a lot of bike folks get so involved in the best brand, the best fit, the proper seat, shaving off a few grams, the right sized tires,etc. that they loose a big part of the bicycle experience. If you want to go faster or ride longer or improve hill performance then....BE PREPARED FOR PAIN. If you're a cardiac patient, I'm not talking about you. I'm talking about folks that are basically healthy and in at least entry level shape. Be with the pain, enjoy it, know it is an investment, learn to look forward to it. If you just want to pedal around a park and enjoy the trees, then I don't mean you either. I have ridden 140 miles weekly for two years now, I'm 215 lbs and 64 years old (this isn't about me, I'm just the only example I know a lot about) every time I ride it's painful! When I get back to the garage, I don't care what my Edge 800 says about heartrate or cadence, I just stand there and feel good! I love the fact that I passed a 30 year old on the road. I love the fact that I'm sweaty and my neck hurts!
Yeah, I could have taken the touring bike today with the cushy seat and 28 tires but I wanted to push myself, go fast and hard on my speedy bike with the brick for a seat. After my shower I sit at the computer and finally there's no pain at all, just a wierd, powerful type of fatigue, the kind only bicyclists know of.