12T 550 motor 4S speed run

Generic 12T 550 brushed motor with in built fan and ball bearings running on 4S. ESC is a 2-6S 100A (960A burst) brushed esc from aliexpress and is doing a great job. Motor is also from Aliexpress. Batteries are x2 4000mah 25c 2S in series which combine to make 4000mah 4S 25C.