XK2040-4500KV Brushless Inrunner
 
Specs.
# of poles: 2
Max Amps: 20A
Max Volt: 8.4V
Max Watts: 168W
Rpm/V: 4500kv
Resistance: 0.106 ohms
No-load Current: 2.1A
Dimension: 20mm x 40.0mm
Mounting hole depth: 2.6mm
Length of extend Shaft: 10mm
Shaft diameter: 2mm
Weight: 57.6g