8PCS RC Airplane Model Brushless Motor Shaft Axle Diameter 3mm/3.17mm/4mm for XXD/EMAX 2212/2217/2814 Motor Accessories 8PCS RC Airplane Model Brushless Motor Shaft Axle Diameter 3mm/3.17mm/4mm for XXD/EMAX 2212/2217/2814 Motor Accessories. Sale price : $6.59 Category : Toys & Hobbies