These aluminium hex adapters widen the wheelbase on AXIAL RR10 Bomber models by a total of 29mm, increasing lateral spacing to improve stability when tackling steep or uneven courses.
Correct fitment depends on hub and shaft sizes: the adapter fits wheels with a 5mm hub hole and is intended for 4mm threaded wheel shafts. Confirm these measurements on your vehicle before attempting to fit the adapter.
The retention arrangement uses several parts to secure the hex under load: an O-ring on one face and a spring steel ring, spring with washers and a stainless screw on the other, plus a Delrin collar to lock the hex and prevent wheel slip while crawling.
Fitting guidance: ensure wheel and shaft alignment, verify the 5mm hub and 4mm thread fit, and tighten the delivered fasteners until the hex is held firmly but not overstressed. After installation, test on a short section to check clearance and steering effects.
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