To fit (not all) buggys trucks with a 17mm hex. High grip/traction tyre with high impact hardened plastic wheel structure to ensure a long lasting wheel. Tyres have been glued to the wheel and include foam inserts making them ready to run. Please check measurements below before ordering to help ensure a fit: 130mm External Diameter. 86mm Internal Diameter. 63mm Width. 12mm hex. Center hole diameter 12mm. Depth to 12mm hex is 25mm.