Losi 420 ATX Tires with Foam 2 LST2 XXL/2 LOSB7202 RC TireKey Features ATX is an all terrain tire that is exceptional on pavement and carpet, as well as hard dirt Includes foam inserts Fits all 420 Series wheelsOverview To use these tires specifically on Losi LST2's, LOSB7010 or LOSB7011 wheels are required To use these tires on any Monster Truck (Traxxas, HPI, etc) as well as any Losi monster truck use LOSB7012 universal wheels.