I"ve always thought of it as GAY as I watch some women pushing their bodies to the limit on a bicycle. All those muscles working, those deep fast breaths and the sweat coming off of them.
I have to agree with Ollie. Bikes are just inanimate objects. Therefore, they have no sexuality. However, people who think objects are gay, are probably gay.
Yes of course, racing bikes remind me heavily of two men making love to each other and kissing. Mountain bikes remind me of closeted gay men who are always the first ones to call others gay to direct suspicion away from them.