Patent ID: 8061727
Filing Date: 2011-11-22
Classification: A63B,B62K,B62M

Abstract:
1. An apparatus, comprising: a frame; a drive wheel coupled to the frame; a first and a second foot link operably coupled to drive wheel to transfer power to said drive wheel so as to propel the apparatus, each including a foot receiving portion for receiving an operator's foot, a front end, and a rear end; and a pivot axis coupled to the frame, a crank arm bearing at the pivot axis, a first and a second crank arm coupled to crank arm bearing, a coupling point where the rear end of the foot link couples to the crank arm, and a radial length between the crank arm bearing and the coupling point, said radial length being adjustable to change a stride length of an operator's foot positioned on the foot receiving portion of the foot link.