This GT010D+1MM hex kit is an aluminium +1mm wheel hex set supplied with brake disks for TRAXXAS GT4 TEC 2.0 4WD cars. It increases track width and tidies wheel sitment to improve turn-in feel and more consistent chassis behaviour while tuning.
Included items and reference: brake disk - 2 pcs, 2x10 pin - 2 pcs, Manual number: 8356. The hex assembly acts as the interface between the wheel and the axle and doubles as a decorative ring finished with a machined swirl on the face.
Design notes: the outer ring carries a swirl engraving for a contemporary metallic appearance and the hub is produced at 8mm thickness instead of the common 7mm, which widens lateral track and alters roll couple and stability. The larger outer diameter means the kit is incompatible with the stock brake caliper unless clearance is verified.
Fitment and setup: fitting these hexes shifts wheel offset and track width so handling will change slightly; confirm axle pin retention and thread engagement, inspect wheel runout after install, and use the new offset as a tuning tool to refine chassis balance.
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