Xtream Rock Island Grand Prix sets race classes for Sept. 3-4, 2022 Xtream Rock Island Grand Prix sets race classes for Sept. 3-4, 2022 Bas Kaligis / Sunday, March 13, 2022 0 1515 Article rating: No rating Organizers of the Xtream Rock Island Grand Prix have announced a wide-ranging class lineup for the 27th running of the world’s largest karting street race on Sept. 3-4, 2022. The race lineup remains essentially unchanged from last year with one exception. A driver survey conducted last Fall, and subsequent discussions with racers, urged race organizers to bring back a senior Yamaha can class in 2022. Read more