Agree or disagree? Whatever you think I think they have a style and anything to do with urban cycling culture I'm into it.... but I don't have a fixie yet. (and I won't pay more than $100 for one!!)
I know a guy who builds up bikes and puts them on ebay. we bought a bike from him a few weeks ago.
He has a stack of old road frames that he said I could pick from for $10 if I wanted to... could be a good starting point, except that I have already offered to take one of Jeremy's bikes off his hands for just the purpose of stripping it down and having it powder coated... thinking powder blue... and making a fixie from it.
Let me know where you are and maybe we can build them together... maybe we can meet up at the Co-op when it gets up and running in a few months.
What kind of cog are we talking? Is it a screw on track-style cog? Or one designed to go on a splined freehub?
If the old wheel is designed for gears (a cassette) then you can remove all the extraneous sprockets, add spacers to the hub to get the chainline right and have a regular single-speed. There's no need to redish the wheel at all in this scenario. Redishing will require new spokes and probably a new hub. For a conversion on the cheap, there's no sense in doing that.
You'll also need some method of chain tension. A chain tensioner is the easiest but the ugliest. The other methods are bit more esoteric.
Fixies are definitely getting more popular. I'd love to have two bikes - a cheap fixie and a half decent cargo bike/xtracycle. I reckon cargo/utility cycling needs to be championed a bit more so the average punter feels ok about not wearing lycra or having to be trendy like the fixie crowd.
I agree with you Ben. Taking cargo, whether it be children, animals or fruit 'n veg etc. from place to place puts on show how versatile cycling can be. I would love the have the opportunity to try out a few different types before settling on one for myself. If you choose not to go with a trailer then getting a cargo bike is an expensive investment so one needs to be both confident and happy with their purchase.
Perhaps we need a separate discussion on cargo cycling.
The idea of riding one around is appealing, but cycling around town already seems dangerous enough without losing the choice of gears, the ability to coast, and (for the hardcore) even real braking!
As for training on one, I'd worry about the effect of climbing on my knees.