Conversation so far:
What did Graeme Obree do with bikes?
Nicknamed The Flying Scotsman, Graeme Obree is a Scottish racing cyclist who twice broke the world hour record, in July 1993 and April 1994.
What kind of bike did Graeme Obree build?
Graeme Obree's bicycle was built with parts from a washing machine.

Question: What was special about his bike?
Self-contained rewrite: What was special about Graeme Obree's bike?