Someone who doesn't own a bicycle, or doesn't ride their bike as much as their friends but they think it would be very fun. A bikecurious person has a high likelihood of becoming a bikesexual later in life.
Andrew thought his lycra clad friends Blair and Reid were having a lot more fun riding bikes than he was, so the bikecurious Andrew decided to buy a bike himself. Two months later Andrew was a full blown bikesexual and couldn't be more proud.
Sam didn't own a fixed gear but he though that his friend Jack and Bruce were having a lot more fun doing track stands and hipster tricks then he was so he began having bikecurious thoughts about getting one himself despite knowing one day he might become a bikesexual.