105T M1 Helical Autorotation Tail Drive Gear Set

●Use for T-REX 700X/760X/800E.
●Brand new high drive gear ratio is designed especially for F3C & slow 3D flight with superior tail lock and precise flight performance. (Suitable for head speed at 1900RPM)
●To make sure to get the best effect, it must be used with whole set.
●Gear Ratio 1:5.25

●105T M1 Autorotation tail drive gear set x 1
●20T M1 Front drive gear assembly set x 1