The fact that Obree is one of those rare proper cyclists who doesn't go all Armstronged with drugs is alone enough reason to name a velodome after him.
You dont know that he has not been using PED's or other aids. From all his bike tinkering (which as mitre tester has pointed out is always on the limits or beyond rules) he seems like someone looking for an edge in innovative and tricksy manners. Most pro athletes use tend to use something. It depends on the competiveness of the sport in question and its relation the biological limits of human ability.
You dont know that he has not been using PED's or other aids. From all his bike tinkering (which as mitre tester has pointed out is always on the limits or beyond rules) he seems like someone looking for an edge in innovative and tricksy manners. Most pro athletes use tend to use something. It depends on the competiveness of the sport in question and its relation the biological limits of human ability.