How fast is a Mamachari?

Byron Kidd
Put a professional Japanese Keirin bicycle racer on a mamachari and how fast will he go?  That was the question posed by a viewer of a program on television last night.

To answer the question two professional cyclists completed laps of a velodrome and recorded their top speed and time over the last 250 meters of the circuit.  On their track bicycles they both managed a top speeds around 65km/h, and on the mamachari they barely managed to reach 44km/h.

In contrast, a comparatively unfit member of the programs crew completed the same course on the mamachari and managed a top speed of 39km/h.  Thus it was concluded that the top speed of a mamachari is more a factor of the bicycles gearing and geometry than the strength and level of training of the rider.

Obvious of course, but still entertaining viewing on a slow Wednesday night.

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  1. I would have like to see that. I'll have to keep an eye out for it on youtube.

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  3. I would think a big difference would show up going uphill for any distance. It's amazing how much a few kilos makes in the effort grind up a hill.

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