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quantifying design criteria
So I'm beginning an experiment with designing a recumbent. I'm also a
complete bent newbie but I do have some metalworking/composites experience and a lot of upright wrenching experience so I figure it's worth giving it a go. Having said that I'm trying to pin down what the bent community means when they say a bike is "fast" or "slow". I mean it's obviously related to seat angle and BB height. a Tour easy is a differnt beast than a bacchetta aero. But how about the different between something like the aforementioned aero and a street machine. BROL describes the aero as fast and the street machine as being kind of slow. But the riding positions are similar. (particurlarly on the 26/20 version of the aero) A quick analysis of the side pics of both bikes suggests that with a similar seat angle the frontal area would be quite similar. Is weight the major player in this comparision then? Or is it a more amorphus "this bike feels fast" kind of judgement. My goal is a high-racer/fast touring style of bike. Challenge serian or similar. I haven't yet sold myself on teh 26 front wheel tho. I've never ridden a bike witha seat that high and I was wondering how it might fare in stop and go traffic. The extra visibility would be nice, but I'm worried about getting a foot down. I have a 35 mi rt commute of which approx 5 mi each way is in traffic with a lot of stoplights. Thoughts? Cheers and thanks for helping a newbie out. -Tim |
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