Feature:1. Powerful Tool: Uses ultra large precision balance 5 slot rotor, the motor will run smoothly and reliably with large torque.2. Hard Outer Shell: With CNC precipitated high hardness steel shell and goldplated process, the outer shell can procide efficient protection of inner parts.3. High Performanc: RC crawler motor contains ultra thin (0.35mm) silicon steel sheet stator and wear resistant super large current high quality low resistance carbon brush toprovide a high performance.4. High Tech: Motor has 24K gold plated low internal resisting terminal connection welding piece, also equipped with dual PCB board capacitance to effectively prevent interference.5. Easy to Use: Removable replaceable structure is easy for cleaning and maintenance, specially designed to RC crawler vehicles which needs precise motion control.Specification:Item Type: RC Brushed MotorMaterial: Steel + CopperColor: GoldModel: 540PLUS V2Product Size: Shaft Length: Approx.12mm/0.5inApplication: For 1/10 And 1/12 Remote Tracked Vehicles/BoatsWeight: Approx.235g/8.3ozRecommended ECS:80A-PLUS V2 Top-Level Brushed ECS.Package List:1 x 540 Brushed Motor1 x ManualNote:1. Please allow 13cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.3. Avoid operating temperature above 65 (150 F).4. Do not touch the motor after use, as it may be very hot.5. Allow the motor to cool completely between uses.6. Be sure to use properly sized motor mounting screws.7. Do not tighten the motor mounting screws.8. When switching from a lower voltage battery to a higher voltage battery (e.g., from 7.4V to 11.1V), it may be necessary to change the gear ratio or lower the motor rated KV otherwise, the motor or electrical modulation may overheat and permanently damage.