This KV440 brushless motor is suited for 90-class radio control helicopters.
The design reduces the battery resistance with good consideration of heat radiation.
Compared to other motors of the same class, this motor is more powerful.
Highly recognized by many F3C pilots.
Notice: JR-61577 is needed if used on a JR E12 Mechanism Set.
Tech Specs
Kv : 440rpm
Max Voltage : 12-cell eqv.
Max Current : 95A
Max Power : 4200W
Diameter : 61.5mm
Shaft Diameter : 6mm
Weight : 522g
Bolt : 10
Specs Sheet 
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