Hacker Brushless Motor he A20-26M EVOhe A20 motors are small outrunner of our series and provides great efficiency and light weight. Theyre ideal for small electric airplanes up to 600g (21oz). Featuring a Slotted 14 pole outrunner design. The Curved Neodym Magnets offer a perfect gap from the inside of the rotor for optimal power and efficiency Spare shafts, Backmount, Prop adapter and all screws are included. 3,5mm gold bullet connectors are provided (not with A20 S).