This Is QH 3674 1900KV 4 Pole Sensorless Brushless Motor With 5mm Shaft .
Those high performance motors are customized from manufacturer is specially version for US market. Those specially version motors have upgrade bearing and specially rotors to handle higher speed and great torque.
All those motor are brand new , but We still double test before we ship the motor out to make sure motors high performance .
90 Day Warranty From Our Store .
Shipping from US, Thanks for Looking .
SPECIFICATIONS
Type : 4 Pole Sensorless
Waterproof : Rainproof
KV(RPM/Volt): 1900KV
Max Amp: 75A
Max voltage: 2-4S Lipo
Diameter: 36mm
Length: 74mm
Shaft Diameter: 5mm
Connector: 4mm
Warranty : 90 Days