RCXAZ 320A Brushed ESC + 550 Brushed Motor for 1/10 Axial RC Track SCX10 AXI03007 90046 Traxxas TRX4 D90 550 Motor Features: 550 Brushed Waterproof Motor is a budget motor built for messy, dirty roads. This powerful 550 motor has 30% longer armature than a standard 540 size motor for extreme monster torque. Heat-resistant motor with built-in cooling fan, allows for fast speeds, long working time and long service life. High-strength magnets ensure maximum performance. 1/8 inch shaft diameter, ball bearing on the output side. Ball plugs are an easy connection to the ones you need without soldering. ESC detail; Attention: When connected to a motor, it is capable of up to 320 amplifiers (forward) or 160 (backward) continuous motor current. Its integrated vow; d Battery Eliminator (BEC) supplies the load from the motor battery, with automatic motor power cut-off to conserve load power as the battery is depleted. It is small and powerful, which; can be used for different type of vessel or car. Battery Support: Ni-mh, Ni-Cd 4-6 groups (4.8V-7.2V); Lithium battery 2 groups (7.4 V) Current parameters: forward 320 A, reverse 160 A, brake 270 A BEC output: voltage 5.6 V, current 2 A (electrical power supply for the receiver; w, servos) Size: 43x29x27mm ESC instructions: Properly connect to the power battery, red wires at both ends