To the source of a bicycle can, apparently, include
permutation wheel carts with two-track position in the single track. At the end
of XVII century in many countries, there were wooden single-track two-wheeled
carriages, which were set in motion by the rider - he took it down the ground,
and thus moved to the top of the carriage. These were the first prototypes of
the modern bicycle. A typical example of such crews can serve as a "toy
horse" Charles Dries, based on single-beam scheme. The self-name of the
crew talks about entertainment vehicles, do not pretend to convenient means of
transportation, the steering wheel is not yet available. No wonder such crews
called "kostotryasami."
On the verge of the XVII and XVIII centuries,
"kostotryasov" appeared swivel front wheel ensures rule balansiovanie.
An example of such personnel may serve as a "scooter" Blanshera.
Two-wheeled scooters of this type began to fight for speed,
reliability and security: the wooden wheels appear with metal rims, riders are
provided with a special metal-lined shoe keeps your feet from injuries at the
wheel scooters attach "gun" to scare the dogs.
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