Brand Name： GTB Origin： CN(Original) Tool Supplies： CNC CUTTING Material： Hardness Steel Upgrade Parts/Accessories： CNC Metal RC Parts & Accs： HPI RS4-3 Dual Speed System Use： Vehicles & Remote Control Toys Model Number： RS4-018 Remote Control Peripherals/Devices： HPI RS4-3 Dual Speed For Vehicle Type： HPI RS4-3 Four-wheel Drive Attributes： Assemble Parts The double speed system adopts super hardness steel and is made by CNC precision machining. The movable tooth passes through the weight reduction opening to facilitate discharging the powder. All steel products are well treated by HRC heat treatment. It is the best choice to replace the original plastic parts label: HPI RS4-3 Dual Speed System
