Specifications： Item: GR2004 KV: 1750KV / 2550KV /2150KV/3150KV(Optional) Configuration: 12N14P Stator Diameter: 20mm Stator Height: 4mm Shaft Diameter: Φ1.5mm(1750KV/2550KV) / Φ5mm(2150KV/3150KV) Size: Φ15.3mm*13.8mm Rotor: N52H Weight: 16.8 grams Target: Toothpick & Long Range FPV Recommend the battery: 1750KV(2-6S)，2550KV(2-4S) Feature: High-efficiency and Smooth Perfectly Fit to Toothpick and Long Range FPV Dynamically balanced with Dual Bearing Design Best for 5inch Propellers Include： 1 x GR2004 Motor 4 x M2x4 Button head screws 4 x M2x5 Button head screws 4 x M2x6 Button head screws