Traxxas TRX-4 Pre-Mounted Canyon Trail 1.9 Crawler Tires. These are premounted on black TRX-4 Wheels. The 1.9 Canyon Trail S1 compound tires and tuned foam inserts are super-soft and grippy to deliver superior bite on rocky surfaces with convincing scale realism. The 12mm hex drive makes the TRX-4 wheel compatible with a variety of popular 1.9 class trucks.
