Powerful Motor UPGRADE for your WELL M4 / BD556
– Strong NDFeB Magnet Structure
– High Speed High Torque
– Rated Voltage: DC8.4V
– Working Voltage: DC7.4-12V
– 8.4V = 39000RPM
41000RPM Super High Speed Motor UPGRADE for your WELL M4 / BD556
– Strong NDFeB Magnet Structure
– High Speed / High Torque
– Also Fits JM9 and JM ACR
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