I carry around a 7 speed Dahon folding bike in my pickup. Useful when I have to park my truck a couple of blocks from the job site when parking is tight. (Quite often in Hawaii) I unload my gear at the job and then move the truck.
If I am just going somewhere from home within 5 miles and I don't have to carry anything big I use my souped up 88cc moped. It will do 50 mph, good enough for everything around here except the freeways. I got tired of pedaling a bike more than a few blocks about 5 years ago.
this is a second bike....
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I havnt been riding much in the last few years but I hear the 29ers are really taking off. This spring I just put sram grip shifters on my fuel 100, I like being able to twist through those gears......... Sod the single speed
Any time you wanna climb some BIG hills and rip a 30 min decent give me a shout and I'll also show you the quick way up a tree........
Not sure what is is with single speeds, some guys take to them like religion, and other riders go with the gears. A lot of bike messenger riders are into them. My buddy was riding fixed, and after using his ride two times or so, it just seemed...I dunno, logical or something. The quiet is what first appealed to me, and then like just having to rely on your own power to meet the steepness your're riding on. Downgrades without a freewheel can get kind of wild, and mine has a brake. I also like the simple design of a single speed. Check out the velodrome races if you ever get a chance...damn kickazz.
One thing I really like about cycling is the total self sufficiency part....like riding way out into the boonies, and then having just your own power to get your ass home...blown out tired or whatever. I like the challenge in that, so maybe with a single gear it's somewhat more so. Anyway, that's just me, and I respect derailer bikes, even have an old Italian Masi. If I was riding on very steep terrain a lot, I'd go to a three speed.
Anyway, not wishing to change anybody's riding style, talking bikes just gets me going. All bikes rock.