Motor EM-300/20 is small and very robust, but light weight brushless motors with rotating case suitable. Metal gear E095 with 25 teeth included in a set.

Features:
Weight: 45 g
Measures: 27.7 x 26 mm (d x l)
No. of cells: 4-8
RPM/V: 1820
Max. efficiency: 82 %
Max. efficiency current: 8 - 12 A (>75 %)
Current capacity: 16 A/60 s
Shaft diameter: 3.17 mm