Made of aerospace-grade 7075 aluminum alloy, the is hard anodized and leave no traces if lightly scratched; titanium alloy shaft NMB bearings rotate smoothly and smoothly, allowing free and quiet flight 40 push-to-weight ratio, 2750g pulling force X2812 brushless motor is an upgraded version of the motor. It is designed with 12N14P high torque motor, which is stable, reliable and powerful Adopts m5 shaft, suitable for most propellers KV:900KV Configuration:12N14P Stator Dimension (mm):28 Stator Height (mm):12 AWG:18#,250mm Length Magnet:N52H Internal Resistance(Mohm):72.52 Idle Current@10V (A) 1.12 No. of Cells(Lipo) (S):6S ESC:6S 40A Max power (W):804.44 Propeller:9inch Hipot test@500V AC:PASS Max Current (A):33.80 Dynamic balance requirement standards:less than equal 6mg Impluse winding test:PASS Due to different batches, the printed words on the product be different, which does not affect use. Colour:Black Material:Aluminum alloy Package Contents: 1 * Brushless Motor 4 * M2 Screws 1 * M5 Nut Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.