Track spikes Emil Zatopek, a distance runner from Czech Republic, wore them during the 1952 Olympics in Helesinki. The front of the sole features a rigid or semi-rigid spike plate containing between 3 and 9 threaded holes called spike wells. Spikes can be screwed into each well using a spike wrench. Recently, some individuals have attempted to add a "through hole" at the bottom of the spike to make them easier to tighten, remove, and install. Some shoes have permanent or "fixed" spikes which are not meant to be removed. Spikes may break during competition. Track shoes are exceptionally light, some shoes
Emil Králíček Emil Králíček Emil Králíček (October 11, 1877 - March 26, 1930) was a Czech architect. Králíček studied at Prague Industrial Arts School and in the offices of Antonin Balsanek in Prague and Joseph Maria Olbrich in Darmstadt. He began designing in Prague around 1900 in the office of Matěj Blecha, and worked in the styles of classicism, Art Nouveau, Czech Cubism and Czech Rondocubism successively. Beginning as draftsman Králíček worked himself into a position of project manager, and developed collaborations with a number of Czech sculptors like Celda Klouček, Antonín Waigant and Karel Pavlík. Králíček started his own office in