For your safety, please pay attention to the above 2200 RPM, incorrect excess 2200 RPM may result in damage to the helicopter or injury the porperty of others.
●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