Park 180 Brushless Outrunner Motor, 2200Kv Key Features Ideal for 3D models weighing 2â??3 oz (55â??85 g) and sport and scale models weighing 3â??6 oz (85â??170 g) Ideal for indoor and outdoor small aerobatic park flyers Extremely quiet and lightweightâ??just .3 oz (8.5 g) High-torque, direct-drive alternative to inrunner brushless motors Designed for firewall mount or carbon tube mount 4- to 8-cell Ni-Cd/Ni-MH or 2â??3S Li-Po Up to 30 watts Includes prop adapter Includes mount, mounting hardware and 2mm gold BL connectors Upgraded performance for indoor motors High-quality construction with ball bearings and hardened steel shaft Overview Ideal for 3D models 2â??3 oz (55â??85 g), and sport and scale models 3â??6 oz (85â?? 170 g) or models requiring up to 30 watts of power. Product Specifications Type : Brushless outrunner Size : 180 Bearings or Bushings : Two 1.5 x 4 x 2mm Bearings Recommended Prop Range : 3x3 to 6x3 â??Direct Driveâ?? for 2S or 4x4 or 4.5x3 for 3S Voltage :4.8â??11.4V RPM/Volt (Kv): 2200 Resistance (Ri): .91 ohms Idle Current (Io): .30A @ 8V Continuous Current :2.6A Maximum Burst Current : 3.2A (15 sec) Cells : 2â??3S Li-Po or 4â??8 Ni-Cd/Ni-MH Speed Control :4â??6A brushless Weight : 8.5 g (.30 oz) Overall Diameter : 16mm (.63 in) Shaft Diameter : 1.5mm Overall Length : 20mm (.80 in) Needed to Complete 4-6A Brushless ESC 2-3S Li-Po or 4-8 cell Ni-Cd/Ni-MH 3x3 Direct Drive Prop