"I remember seeing this once on a track, and to be fair I had my suspicions at the time. There was Chris Hoy and five other riders strung out behind this fat bloke on a weird looking bike, and they couldn't get past him. Eventually the fat dude got fed up (probably getting hungry) and pulled off the track, which is the only reason he didn't win as far as I could see!"
http://www.cyclingweekly.co.uk/news/latest-news/uci-detains-bike-suspected-of-technological-fraud-at-cyclo-cross-world-championships-209465
"I remember seeing this once on a track, and to be fair I had my suspicions at the time. There was Chris Hoy and five other riders strung out behind this fat bloke on a weird looking bike, and they couldn't get past him. Eventually the fat dude got fed up (probably getting hungry) and pulled off the track, which is the only reason he didn't win as far as I could see!"