Brand Name: GTB Origin: CN Tool Supplies: Cutting Material: Steel Upgrade Parts/Accessories: KYOSHO FW05 FW06 RC Parts & Accs: KYOSHO FW05 FW06 Use: KYOSHO FW05 FW06 Remote Control Peripherals/Devices: KYOSHO FW05 FW06 For Vehicle Type: KYOSHO FW05 FW06 Four-wheel Drive Attributes: KYOSHO FW05 FW06 GTB Hard Steel Kyosho FW05 FW06 Spur Gear 46T 51T 2 Speed Gear Set Upgrade PartMaterial :Hardened Steel 46 Teeth fit KYOSHO FW06 (the second gear)51 Teeth fit KYOSHO FW05 and FW06 (the first gear)Please according your requirement to order them!thank you !