This Yeah Racing Hackmoto V2 Modified brushed motor series are high performance 540 motors designed exqusitivly for competitive RC usage. Hackmoto V2 featured premium quality material with high strength magnets for unmatched brushed motor speed and torque. Beside of its performance, the motor featured direct-solder wiring tabs for flexible soldering options. It is also designed to be rebuildable with an easily accessible commutator and replaceable brushes and springs. The motor also adapted dual-ball bearings design yields better performance, allowing a smooth ride, precise control with best possible efficiency. Feature: Size: 540 For: 1/10 RC Car Color: Black Rebuildable with an easily accessible commutator and replaceable brushes and springs High strength magnets for unmatched brush-motor performance Specifically designed for R/C vehicles that require precise movement control Excellent torque and long-run times Direct-Solder Wiring Tabs for flexible soldering options Dual-ball Bearings Design Specification: Length: 70mm Width: 36mm Shaft: 3mm Turn: 13 Input Voltage: 7.4v Max. Input Voltage: 11.1V Shaft Length: 13mm