AMERICAN RACER SD38 OR HARDER FOR POLAR ICE Just a reminder the controlled R/R tyre for the Polar Ice Midget series is an American Racer SD38 or harder compound. Other Polar Ice Rules and Regs if you don’t have them will be available at the track this weekend ! Share this:FacebookTwitterPinterestLinkedInEmailPrint Related Author: admin Published: September 14, 2016 Categories: Polar Ice Series