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1-new 3bulb form with two feature of seat.
3-adaptation in change the height.
4-fixed dimension between seat and pedal.
5-has no extra handle to rest jack. (with pulling the each bulbs up; user can adjust the jack.)
7-ability to use coloured.
8-user will not be weary; becouse he/she can change seat position.
amir kabir university(polytechnic)
Mr. samet haghighi