GPM XM013 Alloy Rear Gear Box for HPI XMODS - Reinforced Upgrade  [XM013]

GPM Alloy Rear Gear Box Upgrade for HPI XMODS

Give your HPI XMODS a tougher drivetrain with the GPM alloy rear gear box, built to deliver greater durability and consistent handling. This replacement unit is tailored for HPI XMODS fitment and helps maintain rear stability and precise gear engagement whether you are pushing for speed or enjoying casual driving.