The GPM RR019021/5D four-piece upgrade replaces factory front C-hubs and knuckle arms on compatible Axial models to provide a fixed 5 degree toe-in. The kit contains front C-hubs, knuckle arms and hex wideners, all specified in aluminium to reduce flex compared with stock plastic items.
Effect on handling: a permanent 5 degree toe-in biases front wheel alignment toward quicker turn-in, which can sharpen corner entry on loose, gravelly or rocky surfaces. This is a tuning component for handling adjustments rather than a full suspension redesign.
Fitting guidance: remove the front hub carrier and steering linkages for installation and use the existing mounting points. Retain original fasteners where suitable and confirm wheel hex clearance with the wideners fitted. No changes to motor or ESC are necessary because only steering geometry is altered.
For RC drivers testing sharper steering behavior, this aluminium 5 degree toe-in front C-hub and knuckle arm set is a direct way to evaluate corner entry and steering feel on Axial RR10 and Wraith chassis.
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