GPM 23mm aluminium wheel hex adapters are designed to widen effective track by 23mm while maintaining tight tolerances. The 4mm bore ensures accurate axle alignment for common crawler shafts and wheel hubs.
The retention system combines an O-ring on one side with a spring steel retaining ring and washers on the opposing side to deliver consistent clamping force. An internal delrin collar locates the hex to prevent axial and rotational movement, which reduces wheel and tyre slippage during technical Axial SCX-10 II operation.