There's a 1/2 serious, 1/2 lots of playing around, race up here every year at the velodrome specifically on cruisers.

The first part of the day is mixed teams (men & women) and citizen's races and is done with a motley fleet of mostly antique cruisers, the second part (only slightly more serious - costumes are not optional ) is done on matching bikes - they are Van Dessels from a few years ago, called the Straight Up - that are sort of 1/2 track bike, 1/2 cruiser. They are single speed, with coaster brakes, but they have larger, skinny tires, road saddles, and messenger style handlebars (sort of an abbreviated moustache bar).