Bicycle travel simulator

Claim 1

In a bicycle travel simulator wherein frame supported bearing mountEd rollers are provided upon which a bicycle can be ridden in place with a front wheel support roller being belt driven by a rear wheel support roller, an improvement comprising in combination, a. at least one peripheral groove unitary with each belt connected wheel support roller adapted to receive a power transmission belt wherein each said groove is wider at the mouth thereof than at the root, b. at least one substantially non-extensible endless power transmission belt of greater minimum width than the roots of said grooves operably disposed in said grooves supported wedgelike by the walls of said grooves radially distant from the roots of said grooves, said belt being structured to be compressed deeper within the grooves to substantially increase the operating frictional losses between the wall of said grooves and said belt when the spacing between said wheel support rollers is increased, c. first adjustment means anchorably connectible in incremental settings to said frame to adjustably space said belt connected wheel support rollers in accordance to the wheel base of a bicycle to be ridden thereon and second adjustment means biasable to variably tension said belt and the depth to which said belt is drawn into said grooves thereby to provide fine adjustment of the frictional loading between said belt and walls of said grooves and of the work expended in pedaling a bicycle thereon, to simulate the effort required to pedal a bicycle under conditions of actual bicycle travel.