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Hypercycle, was: Touring bike manufacturers
thirty-six aka Trevor Jeffrey wrote:
On 7 Jan, 01:25, Tom Sherman °_° wrote: thirty-six aka Trevor Jeffrey wrote: On 6 Jan, 08:23, Tom Sherman °_° wrote: thirty-six aka Trevor Jeffrey wrote: On 6 Jan, 03:02, Tom Sherman _ wrote: Peter Cole wrote: [...]All bikes are vertically stiff enough, [...] Not true. All diamond frames maybe, but not all bicycles. Viagra still too expensive? They make Viagra for bicycles? Keep claiming they are not all stiff enough and perhaps they will. The vertical flex in this bicycle is noticeable (and welcome on rough roads): http://www.flickr.com/photos/19704682@N08/1939602865/sizes/o/in/set-7.... So it is not in need of viagra, it is stiff enough despite your apparent knee jerk denial to Peter's statement that all bikes are stiff enough in the vertical plane. It may be possible to intentionally build a bicycle with improper amounts of vertical compliance and you may even sell a few, but they become ornaments or landfill, not bicycles. Bicycles need to be ridden and an exercise in design and marketing does not make a bicycle. Here is a bicycle that is NOT stiff enough in the vertical plane (or torsionally for that matter): https://home.pacbell.net/recumbnt/hypercycle.jpg. Fortunately, most recumbent designers have learned from the mistakes of the Hypercycle that was one of the earliest designs on the market in the modern recumbent revival. -- Tom Sherman - 42.435731,-83.985007 |
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#2
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Hypercycle, was: Touring bike manufacturers
On 7 Jan, 03:05, Tom Sherman °_°
wrote: thirty-six aka Trevor Jeffrey wrote: On 7 Jan, 01:25, Tom Sherman _ wrote: thirty-six aka Trevor Jeffrey wrote: On 6 Jan, 08:23, Tom Sherman _ wrote: thirty-six aka Trevor Jeffrey wrote: On 6 Jan, 03:02, Tom Sherman _ wrote: Peter Cole wrote: [...]All bikes are vertically stiff enough, [...] Not true. All diamond frames maybe, but not all bicycles. Viagra still too expensive? They make Viagra for bicycles? Keep claiming they are not all stiff enough and perhaps they will. The vertical flex in this bicycle is noticeable (and welcome on rough roads): http://www.flickr.com/photos/19704682@N08/1939602865/sizes/o/in/set-7..... So it is not in need of viagra, it is stiff enough despite your apparent knee jerk denial to Peter's statement that all bikes are stiff enough in the vertical plane. *It may be possible to intentionally build a bicycle with improper amounts of vertical compliance and you may even sell a few, but they become ornaments or landfill, not bicycles. *Bicycles need to be ridden and an exercise in design and marketing does not make a bicycle. Here is a bicycle that is NOT stiff enough in the vertical plane (or torsionally for that matter): https://home.pacbell.net/recumbnt/hypercycle.jpg. Fortunately, most recumbent designers have learned from the mistakes of the Hypercycle that was one of the earliest designs on the market in the modern recumbent revival. Obviously not designed by any sane engineer. There is less depth to the longitudinal member than seen on the down tube of the lightest diamond pattern frames. The headtube will be all over the show. I guess that it made for difficult control when actually powering the machine. |
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