Off they go: The lead group of bikers take off for the 34th annual Dirty Dozen race at the Bud Harris Cycling Track in Highland Park on Saturday. The race had a deeper meaning this year after co-founder Danny Chew was not able to lead it for the first time in the race’s history after he was paralyzed from the chest down in a biking accident three months ago. (Photo by Pam Panchak/Post-Gazette) #Pittsburgh #PGH #412 #biking #racing #bikeracing #DirtyDozen #DirtyDozenbikerace #PGPhotos