1、There are three different types KV available, 2300KV, 2500KV and 2800KV. 2、Brushless motor featured low friction, low heat and easy maintenance. 3、Made of high-quality materials, which is light weight and durable. 4、 Special designed for RC FPV racing drone, helping to improve performance. 5、28.5mm motor width, 31mm motor length and M5 shaft diameter. Features: 1. There are three different types KV available, 2300KV, 2500KV and 2800KV. 2. Brushless motor featured low friction, low heat and easy maintenance. 3. Made of high-quality materials, which is light weight and durable. 4. Special designed for RC FPV racing drone, helping to improve performance. 5. 28.5mm motor width, 31mm motor length and M5 shaft diameter. Specifications: Condition: 100% Brand New Brand name: DYS Model: Samguk series shu Name: shu 2306 2300KV 2500KV 2800KV 3-4s brushless motor Optional KV: 2300KV / 2500KV / 2800KV Version: CW thread Lipo battery: supports 3-4s Shaft Diameter: M5 Motor width: 28.5mm/1.12in Motor height: 31mm/1.22in Weight: Approx.94g/3.32oz Package List: 2 * DYS Shu 2306 Motor 2 * Motor Nut 2 * Bag of Screw