BLS905X is a top helicopter tail servo for 3D aerobatics. It is extremely solid due to the aluminium housing and the solid metal gear.
The servo KST BLS905X has the following advantages compared with theBLS805X: The brushless motor and the electronics are more powerful. Because of these facts and in connection with high quality ball bearings the BLS905X is a class higher than the BLS805X.
Due to this performance and the high positioning speed, the KST BLS905X HV is perfect for advanced 3D helicopter pilots.