This is an RC-scale wheel hex adapter set designed for AXIAL SCX10 and SCX10 II platforms, provided by GPM as part number SCX010/21MM. The adapters increase the effective wheel width to widen the track, reduce the visible gap between wheel and hub, and position the wheel farther outboard for improved stance and on-model stability.
The adapter thickness is 21mm, which is 15mm thicker than the typical stock hex, and they are intended to mate with wheels that use a 5mm thread hole. Installation is plug-and-play when compatible wheels and wheel nuts are used; the set ships with the basic fasteners needed for mounting in most standard wheel setups.
Use these adapters when you need a simple mechanical change to alter track width or to fine-tune wheel offset for scale appearance or handling balance on trail and crawler models. They connect between the axle hex and the wheel, and are compatible only with RC-scale applications.
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