Six-Series Brushless 6-pole motors are high-torque motors suitable for either direct drive or geared applications. They feature the same diameter and mounting hole pattern as brushed 400 and 480 motors so they make excellent upgrades for these classes of models. Six-Series motors are ideal for direct-drive applications such as hotliners and other LMR products weighing 18 to 28 ounces. They are also ideal for 3D and aerobatic models weighing 28 to 35 ounces, and for scale park flyers weighing 25 to 40 ounces, when using a gearbox. They’re an especially good match for the ParkZone F-27B Stryker (PKZ1200), flying wings and hotliners when using direct drive, and for aerobatic and 3D models like the E-Flite Brio 10 (EFL2275) when using a gearbox.