This pinion gear is specifically designed for the HK4035 series helicopter motors, with the size of module 1.0 and the bore size of 6.0mm that are used with the most...
Align TB70 23T Motor Belt Pulley Assembly : HB70G004AXT
Suitable for TB70.
TB70 23T Motor Belt Pulley Assembly × 1
Socket button head screw × 3(M2x6mm)