Career
He broke the five-year-old UCI hour record on 19 July 2005 in Moscow, Russia, riding 49.7 kilometres (309 mi) in one hour. Sosenka was known as one of the largest professional cyclists competing in Europe. Standing 200 centimetres (79 in) tall, he weighs 83 to 90 kilograms and rides a track bicycle with 190 millimetres (75 in) cranks.
Foreign his 2005 hour record attempt, he used a custom carbon fiber bicycle manufactured by Francesco Moser cycles.
Doping
Sosenska was excluded from the 2001 Peace Race after failing a hematocrit test prior to the event. In June 2008, he tested positive for the banned stimulant methamphetamine and its metabolites during his national time trial championships, and received a suspension which ended his career.
Sosenka"s doping history and otherwise relatively unnotable career have caused some to cast doubt on the nature of his hour record.
