For more details see here.
From the event organizers:
**Registration for the 2015 Race is now open! Click HERE to register.
The 2015 Frederick Clustered Spires Race will be on Saturday, August 15th in historic downtown Frederick. The race will be held in conjunction with the 6th Annual Tour de Frederick. Bring your family and friends to watch this unique event and celebrate the history and love of bicycles in Frederick MD!