Mini 4WD Pera Tires Outer Diameter: 23.0mm Tires: Low Friction (Maroon) Wheels: PP Medium Diameter Mesh, Lid Removed, Rim Removed All parts are genuine Tamiya products. Competition History Station Champion Decisive Battle 2024 Participant Official Tournament Grand Prix 2023 Runner-up Station Champion Decisive Battle 2023 Participant Wheel selection is divided into 5 ranks, using only those with minimal runout after being pierced. Wheel truing is done using a tire setter. Even wheels with runout can be made nearly perfectly round by grinding, but they lack stability due to the shift in the center of gravity. The lids and rims have been removed to reduce weight. Medium diameter low friction tires are glued in place. The tires are primarily shaped using Homi files, adjusted with diamond files, and finished with melamine sponges. If you have any requests, please feel free to consult. I will accommodate additional processing as much as possible. Thank you for your consideration.