Compatibility: The gears are compatible with 1/10 RC Car 3650 540 550 Brushless Motor. Material: The gears are made of aluminum alloy material, which is solid and durable in use. The speed for RC cars depends on your gear ratio.We offer five different gears to give you more choice in gear ratio. Teeth number: 12T 13T 14T 15T 16T / 16T 17T 18T 19T 20T, each tooth number 1pc, 1pc wrench, 5pcs screws. Good workmanship: Fine workmanship ensures better work performance, it is a nice replacement accessory for your RC car. Material Aluminum Alloy Teeth 12T, 13T, 14T, 15T, 16T/ 16T, 17T, 18T, 19T, 20T Diametral Pitch 32 DP Colour Gold Type Gear Brand Unbranded/Generic MPN MEM94927172867 .
