These GPM aluminium wheel hex adapters increase overall wheel width to 23mm, helping to steady the chassis across uneven terrain. The adapters feature a 4mm bore for compatibility with standard shafts and wheels of similar sizing.
The assembly uses an O-ring on one face and a spring steel ring with washers on the other to secure the hex. A delrin collar installed internally keeps the hex indexed to the axle, preventing wheel slip when tackling technical Axial SCX-10 II crawls.
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