This is a 4-pole B29 L70 brushless motor!
Diameter: 29mm
Length: 70mm
Motor shaft: 4mm
Motor mounting hole: 16mm & 19mm
Kv: 3900
Continuous Watt: 650W
Max. Watt: 1050W/15 sec.
Max Amp: 96A/15 sec
Safety Running RPM: 35000
Max. RPM: 60000
Resistance in Ohm:0.057 Ohm