Lycra

They're the people who buy very expensive bikes, wear tons of Lycra with way too much gadgetry and gear all over their clothes and bikes and don't obey the rules of the road. More money than brains, gadgetry than skills, they never use hand signals, they ride doubles / triples / quadruples down narrow roads in car lanes and disobey "share the road" rules. They make other cyclists look bad. They're into the idea of cycling but don't actually live it or know anything about it. It's a status symbol to them that only other lycras think is impressive.