The Xtream Rock Island Grand Prix, the world’s largest and most prestigious karting street race, will run for the 29^th time this August 31-September 1. In response to a number of racers, an adjustment has been made to the race’s spec tire rules.

Registration is now open for the 28^th running of the Xtream Rock Island Grand Prix, the world’s largest and most prestigious karting street race, Saturday and Sunday, Sept. 2-3.

The 27^th running of the Xtream Rock Island Grand Prix, the world’s largest karting street race, this year will feature 18 racing classes. Admission is free to this family-oriented event. Racing is schedule for 8 a.m. to 5 p.m. each day with morning practice and afternoon qualifying heat races on Saturday, followed by practice, opening ceremonies and 18 feature races Sunday.

Registration is now open for the 27^th running of the Xtream Rock Island Grand Prix, the world’s most prestigious karting street race, Saturday and Sunday, Sept. 3-4.