Shadow 2.2 S3 Buggy Rear Tires (2)Overview This is a pair of Shadow 2. 2" Rear Buggy Tires. Are you tired of burning down brand new Positrons into ghost pins or slicks to be competitive at your track? Pro Line has the solution for you! Introducing the Shadow 2. 2" Buggy Rear Tire, which has the same Positron tire shape but requires much less grinding and burning in to get into the sweet spot. The tread of the Shadow matches the internal webbing exactly as if the internal webbing grew