Model: RS2205-2300 Framework: 12N14P No. of Cells: 3 - 4S Color: Red Length: 31.7mm Shaft: M5 KV: 2300 Max Thrust: 1024g Diameter: 27.9mm Propeller Suggested: HQ 5045 BN Weight: 30g Features: 1. Race Spec Performances 2. High Strength N52 Neodyum Magnets 3. Active Cooling Fins Greatly Reduce Motor Temeratures 4. Low CG, Light Weight Design 5. Japan..