Yeah, just ask the guy out. Preferably to something that he cannot really construe as a friend thing, and preferably somewhere you can dress to make it a date...you know, something to let him see you as a hot woman, not just a bike shop friend. Is there an event that requires dressing up, like a community dinner dance, etc? You can be playful about it...acknowledge you need a "real date" for XXXXXX whatever it is.
Ask him out as a date, let him see you looking different than he normally does for a little jolt of chemistry, and give him an opportunity to get close like dancing.
I don't know. Just some thoughts.
"The best rides are the ones where you bite off much more than you can chew, and live through it." ~ Doug Bradbury