These aluminium wheel hex adapters increase track width on AXIAL RR10 Bomber crawlers, delivering a combined 29mm hex width to improve lateral stability over steep or uneven rock lines.
Fitment relies on hub and shaft dimensions: the adapters are for wheels with a 5mm hub hole and for use with 4mm threaded wheel shafts. Measure your wheel hub diameter and wheel shaft thread before fitting to ensure correct compatibility.
The retention system uses several components to hold the hex under load: one side accepts an O-ring while the opposite side secures with a spring steel ring, a spring and washers, and a stainless screw, with a Delrin collar locking the hex to prevent wheel slip during high-traction crawling.
Installation tip: align wheel and shaft, check the 5mm wheel hole and 4mm thread match, and snug the supplied fasteners until secure without over-torquing. Small changes to wheel offset will affect steering and clearance, so trial on your course after fitting.
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