The GPM Aluminum 7075 +1mm Hex with Brake Disk raises the wheeltrack on the Traxxas 4WD GT4 TEC 2.0 to enhance lateral stability and handling consistency. Finished with a swirl engraved outer ring, the 7075 aluminium construction provides a robust, serviceable upgrade that also improves visual detail. Due to its increased diameter this hex is not compatible with the original brake caliper and requires an alternative caliper fitment.