German bicycle designer Didi Senft, also known as “El Diablo”, poses with his trident after presenting his new bicycle creation to commemorate the 2014 FIFA World Cup, in the town of Storkow, southeast of Berlin April 18, 2014. Senft, who has had an entry in the Guiness Book of Records for the world's largest bicycle, worked some 100 hours on this bicycle, he said. (Photo by Fabrizio Bensch/Reuters)

Didi Senft, a cycling enthusiast better known as “El Diablo” (The Devil), jumps as the pack of riders cycles during the twelfth 218km stage of the centenary Tour de France cycling race from Fougeres to Tours July 11, 2013. (Photo by Eric Gaillard/Reuters)

German bicycle designer Didi Senft, also known as “El Diablo”, pushes out his new bicycle creation to commemorate the 2014 FIFA World Cup, in the town of Storkow, southeast of Berlin April 18, 2014. (Photo by Fabrizio Bensch/Reuters)

The pack of riders makes its way past Didi Senft, a cycling enthusiast better known as “El Diablo” (The Devil), during the twelfth 218km stage of the centenary Tour de France cycling race from Fougeres to Tours July 11, 2013. (Photo by Eric Gaillard/Reuters)

German bicycle designer Didi Senft, also known as “El Diablo”, rides his new bicycle creation to commemorate the 2014 FIFA World Cup, in the town of Storkow, southeast of Berlin April 18, 2014. (Photo by Fabrizio Bensch/Reuters)

Didi Senft, a cycling enthusiast better known as “El Diablo” (The Devil), jumps as the pack of riders cycles during the twelfth 218km stage of the centenary Tour de France cycling race from Fougeres to Tours July 11, 2013. (Photo by Eric Gaillard/Reuters)

Largest rideable bicycle – built by Didi Senft of Germany. Wheel diameter of 3.3 m (10 ft 9.92 in). (Photo by Guinness World Records)