How about if you get him a musette bag like they have in the pro race feed stations, and fill it with all his favorite on bike snacks and energy drinks, maybe a new pair of gloves. Also put in massage lotion (bikers need masages, right? ) rent "Breaking Away" or "American Flyers" and have an easy dinner of pasta, followed by cake and a massage?

I'd be psyched if my bf got me that. Bike themed and romantic.