Locust Flexible Folding Bicycle created by Josef Cardek: “The idea behind the Locust was developed in a very analytical way: I asked myself what parts of a normal bike can never fold? Wheels, of course. So everything else must be subordinated to wheels…and from this idea it was clear to me what shape the bike will have. Also, one of my core objectives was to keep ‘classic conservative geometry’, using the biggest wheels possible to achieve the easy handling and feel of a normal bike.”
Since January 2000, Zipps have not been legal for use in road racing or UCI organized time trials. They are, however, legal in triathlon, which has much more liberal equipment rules. Despite the fact that they have been out of production for 20 years, the frames still have a cult following within triathlon. While they are known for being flexible, and therefore not well suited to hillclimbing, they are well suited to flatter courses.