From my experience running these programs at Wellness Corporate Solutions, employees love Bike to Work day—they come in bursting into the office with energy and camaraderie.
Plus the event raises awareness about both fitness and the environment. This makes it another way to marry Green with Wellness--which management seeking a better environmental record are increasingly willing to support.
It also raises the employer’s awareness of the importance of creating a “bike-friendly” workplace, with showers, bike racks and publicity of these facilities.
For information on Bike to Work programs, visit the website of the League of American Bicyclists.
By the way, the entire month of May is Bicycling Month, so it’s not to late to do something to support biking in your wellness program.
Here's a great example of the kind of positive media coverage of your company participation can generate--and some ideas to borrow for your events.