In a study of accuracy and durability, the device was tested on two different groups of athletes: one cycling indoors in a fitness center under controlled conditions and the other participating in the El Tour de Tucson, a long -
distance bicycle race in arid and complex conditions.
The twenty - one handbuilt
bicycles exhibited sit squarely at the intersection of design, craft, and art, and include a range of contemporary designs: fixed - gear, road
racing, cyclocross, mountain, and commuter
bicycles, as well as the stripped - down radonneur, designed exclusively for long -
distance racing.