Specs: KV(RPM/V): 980 Lipo cells: 2~3s Max Watts(W): 165 Max. current: 15A (10 secs) No Load Current: 0.5A Intemal Resistance: 0.145 ohm Number of Poles: 14 Shaft Size: 3 x 2mm Dimensions(Dia.xL): 28 x 29mm Bolt Holes Spacing: 16 & 19mm Bolt thread: M3 Connector: 3.5mm bullet type connector Weight: 59g (motor only without adapters and screws)