Prepare some motors around in case you need one. TheF540 3650 4370KV 4Poles Sensorless Brushless Motor + 45 Brushless ESC for 1/10 RC Off-road Car is a great option for replacement or renovations. It features 4-pole 12-slot hi-torque motor design. CNC machined 6061 T6 billet aluminum heatsink can ensures its high performance. High purity copper winding maximizes efficiency. With universal fit, it fits all 1/10 brushless cars-multi-mounting system for M3 screws. Don&acute;t hesitate to order now!<!--Features --><p>FEATURES</p><ul><li> 4-pole 12-slot hi-torque motor design</li><li> CNC machined 6061 T6 billet aluminum heatsink</li><li> High purity copper winding maximizes efficiency</li><li> High RPM ABEC5 oversized bearings</li><li> Universal fit, fit all 1/10 brushless cars-multi-mounting system for M3 screws</li><li> Precision balanced rotor, smoothness for best reliability and maximum RPM</li><li> Stator - super thin (0.35mm) laminations</li><li> Removable/replaceable rotor</li><li> Precision engineered for maximum energy conversion</li><li> 45A brusless ESC for cars, give full play to the strongest performance</li><li> 45A brushless ESC features enhanced throttle response, excellent acceleration, strong breaks and throttle linearity </li></ul><!--Specifications --><p>Specifications</p><table width="100%" border="0" cellpadding="0" cellspacing="0"><tbody><tr><td width="131"> KV</td><td width="365"> 4370RPM/V</td></tr><tr><td width="131"> Max Voltage</td><td width="365"> <12V</td></tr><tr><td width="131"> Watts</td><td width="365"> 800W</td></tr><tr><td width="131"> Max Amps</td><td width="365"> 66A</td></tr><tr><td width="131"> Rotor Poles</td><td width="365"> 4</td></tr><tr><td width="131"> IO</td><td width="365"> 3.2A</td></tr><tr><td width="131"> Resistance</td><td width="365"> 0.0185</td></tr><tr><td width="131"> Max RPM</td><td width="365"> 50000</td></tr><tr><td width="131"> Shaft(mm)</td><td width="365"> ↓3.175</td></tr><tr><td width="131"> Weight</td><td width="365"> 125g</td></tr><tr><td width="131"> Diameter</td><td width="365"> 35.8mm</td></tr><tr><td width="131"> Length of Extend Shaft</td><td width="365"> 15mm</td></tr><tr><td width="131"> Length</td><td width="365"> 50mm</td></tr><tr><td width="131"> Connector</td><td width="365"> 4.0mm Gold ESC</td></tr><tr><td width="131"> Constant Current</td><td width="365"> 45A</td></tr><tr><td width="131"> Burst Current</td><td width="365"> 260A</td></tr><tr><td width="131"> Input Voltage</td><td width="365"> Li: 2S-3S NiMh: 4S-9S</td></tr><tr><td width="131"> BEC Output</td><td width="365"> 5.8V/3A</td></tr><tr><td width="131"> Size</td><td width="365"> 32.5mm*34mm General</td></tr><tr><td width="131"> Type</td><td width="365"> F540</td></tr><tr><td width="131"> Dimensions</td><td width="365"> (1.97 x 1.42 x 1.42)" / (5 x 3.6 x 3.6)cm (L x W x H)</td></tr><tr><td width="131"> Weight</td><td width="365"> 7.83oz / 222g </td></tr></tbody> </table><!--Package Includes --><p>Package Includes</p><ul><li>1 x Motor</li><li>1 x ESC</li><li>1 x Manual</li></ul><!--Extra Info --><!--produts_compatibility -->