ESK005 Xtreme 43T PULLEY With BELT for Esky Honey bee king 2

43 teeth belt Pulley w/ Belt and Idlers (for King2) ESK005 3 teeth belt pulley increase the tail rotor speed ratio from 1:3.2 to 1: 4.3 with this faster ratio, the tail rotor is rotating faster and generate a bigger wind force the yaw or drift of the tail when throttle up is greatly reduced, it is a must get upgrade of king 2. This pulley must used with the longer belt provided. Maybe you already discovered that the stock tail rotor gear ratio of king 2 is not fast enough. It is only 1 to 3.2 (32t belt pulley and a 10t tail rotor gear). That means when the main blade rotates 1 cycle, while the tail blade rotates 3.2 cycles. Users are complaining that the tail is not stable and will yaw or drift when throttle up; it is because the tail blades are not generating enough wind force under this low gear ratio. A 43 teeth belt pulley will increase the tail speed ratio to 1 to 4.3. This is a common ratio that using in many popular helicopters. With this new pulley, you will feel the tail of helicopter is more solid and locked. SKU: ESK005