20,000 cyclists are expected to take over the Tulip City next week, and the Pella Chamber of Commerce still has volunteer opportunities they are looking to fill. The first 100 helpers will get a limited edition Pella RAGBRAI shirt. To sign up call the Pella Convention and Visitors Bureau at 628-2626. The first cyclists are expected to enter the city at approximately 6am and leave for Oskaloosa at around 2pm.