My mom. Top-ranked triathlete in the country and reigning Ironman national champion. She bought me a road-bike and all the basics, and there wasn't much more she had to do - I was hooked. Two hard workouts a week, weekend rides when work allows it, and commuting through every weather from 40c heat to torrents and wind - I never thought it would happen, but I'm no longer known as "the photography guy" amongst friends, but rather "the cycling nut".
But my aluminium-framed Sora-triple-shifting bike with 36h rims always leaves me green with envy when I look at her trio of Campy Record-equipped magnesium bikes.