RhinoCrawler RM-S12 / RM-S20 is an extremely torque dense and lightweight choice with exceptional startup! It has more mounting positions, beefier wire retainer, and thicker back iron. RM-S12/20 is very difficult to produce, and it is currently the smallest size of the 2812/2820 stator, the outer size of the RM-S12 stator 2812 is only 35x24mm! RM-S12 stator 2820 is only 35x32mmIn addition, it adopts a specially customized dual tile strong magnetic design, which makes the motor lightweight and has stronger explosive power on the basis of small size! It’s optimized for crawler and makes your car run supers mooth and quiet, but it is also suitable for a variety of 1/8 scale or smaller cars. A built-in adjustable four voltage BEC with a maximum current 10A(VE80A), 3A. A built-in adjustable four voltage BEC with a maximum current 10A(VE80A), 3A(VE40A) to apply the high torque servo. In addition, the e-Switch that comes with it avoids failures caused by harsh environments. Allows the motor smoothly at ultra-low speeds Variable drive frequency. Loss and stalled rotor protection. BEC: 40A – max 10A, output. /80A – max 10A, output. 5.28.2V adjustable by DIP switch. Supported / e-switch supported. Solder pads for power is reserved. Output 14AWGx150mm, signal 250mm and e-switch 120mm. 1470KV / 1900KV / 2340KV. 14 pole 12 slot stator. 8.4V -16.8V (2-4S) LiPo. 1/8 D (3.17mm) shaft output. 25mm Mounting holes for M3 screws. 84g with wires, without connector. 35mm diameter x 24mm long. KV: 1450KV / 1800KV / 2220KV. 120g with wires, without connector. 35mm diameter x 32mm long.