This aluminium pair of wheel hex adapters increases track width by 23mm to enhance lateral stability on scale crawlers. The adapters are engineered to accept wheels with a 4mm centre hole and to clamp to wheel shafts with a 4mm threaded section, enabling the same hex set to be used with wheels and axles that meet those dimensions.
The retention system uses an O-ring on one face and a spring-steel retaining ring with washers plus a stainless steel screw on the opposing face to secure the hex assembly. An internal Delrin collar locates the wheel within the hex to limit rotation of the wheel relative to the hex under traction, aiding predictable control on technical terrain.
These adapters are intended for track width tuning and handling balance adjustments; confirm both shaft and wheel bore measure 4mm before fitment. Regular inspection of retaining rings and screws after demanding sessions is recommended to ensure reliable retention.