Designed specifically for SCX30 models with precise fit for AXI 2048 and AXI 2261 vehicles, ensuring correct wheelbase and steering alignment without modifications. Features 0.7 inch diameter wheels with 3.6mm offset to increase track width, reducing tipping risks and enhancing stability on uneven terrain, small stones, and slopes. Soft foam filled rubber tires provide superior traction on wet surfaces, loose debris, wooden floors, and various landscapes for better crawling . Strong brass alloy wheel construction resists bending during regular crawler use, offering a replacement for original wheel sets. Complete 4 piece set includes matching front/rear wheels and tires for easy installation, perfect for SCX30 enthusiasts upgrading or replacing factory parts.