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This bicycle is designed for people who like to ride regardless of places.
There are people who love to ride bicycle but weather outside is not good. There are people who need to exercise but reluctant to go outside.
This design can help solve these problems by using prop like pictures described.
One good point, if you like to exercise
at home, please let prop down and
Make prop support bicycle wheels
in the air. So, you can watch TV
And take a exercise together.
The other good point, you can ride
bicycle and go outside, of course.
In addtion, this design help park
very reliably even under bad earth
condition like rough road.