Yiguo RC 1:10 Front / Rear Aluminum Wheel Hex Mount AX31010 / AX31011 for Axial Yeti Rock Racer 90026 Black Set of 2 Suitable for Axial Yeti RC 1:10 Rock Racer 90025 / 90026 Part No.: AX31010 / AX31011 Hex: 12 mm Made of Aluminum alloy ,not easily deformed, durable