While a bit off the topic, I don't get the idea/perception that a fixed gear bike somehow requires more energy or is somehow less restful (when desired) than a singlespeed bike. I ride longer distances - I put in a century every single weekend. Actually, you could call it 2 50's as I ride to my mother in laws and then back later in the day. Regardless, she lives in the mountains and I certainly climb to get there and spin out on the way back. On that note, I must admit my 49x17 could use a little adjustment (ha ha). Anyway, I find fixed gear riding to be very appropriate for riding longer distances and while I certainly get tired (you ride 50 with a belly full of grandma's dinner) I never feel as though a freewheel would somehow ease my burden. When coming out of the hills I stay on the front brake and when on the flats the fixed is essentially self propelling. I'm actively resting. I tend to believe people feel this way because without their knowledge or permission they spend their entire timer on their bikes gently supporting their weight off the saddle. Do this - ride along for a bit and then pull out of your straps/clips or unclip out of your clipless. Fell a weight difference in the saddle? If yes, then you are actively supporting your body weight every second you are on your bike and this is very tiring - which is why coasting gives you a break - your body weight is in the saddle and you can actually rest. If your bike is properly set up then your body weight is on the saddle. This is how guys can spin 130 rpm's. They sure aren't doing that while carrying their own body weight in the process. I think a person properly positioned on their bike would have a much greater leaning towards fixed gear riding. Nothing against single speeds in the least. But, they're not more restful transportation.