Pivoted frame for bicycles, includes vertical tube or tubes from pedal bearing, displaced forwards and dispensing with conventional saddle tube

摘要

In this new pivoted frame for bicycles, the conventional saddle tube is replaced by an upright tubes (or tubes) in the region of the pedal bearing, displaced further towards the front. At least one vertical tube is located between the two lengthy frame sections of the conventional frame. Pivot mechanisms and connecting surfaces are included to swing the leading frame segment to the rear left, at an angle.