This aluminium hex adapter pair is intended to broaden track width on AXIAL Racing RR10 Bomber crawlers while keeping the hub area tidy. Each set yields a 27mm span to shift the wheel mounting point outward and help the rig stay flatter on rocky or rooty trails.
The adapters accept wheels with a 5mm centre bore and are designed for 4mm threaded wheel shafts when the hub pattern matches. Internally the assembly uses a Delrin collar to position the hex, an o-ring on one side and a spring steel ring plus spring, washers and a stainless screw on the other side to reduce unwanted rotation under torsion.
Before installing confirm the wheel bore and shaft thread, fit using the supplied components and re-check wheel runout after tightening. These hexes are useful for tuning crawler geometry where a modest track increase improves foothold on uneven ground.
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