Feature:<br />100% Brand New.<br />High torque &amp; high efficiency. The overall efficiency exceed 90 percent.<br />Low heat production， long lifetime， strong overload protection and it can function 95% of its features without any heat sink appliance.<br />High quality materials adopted: high intense aluminum alloy anodizing shell ， front &amp; back cover ， high-performance temperature-resistant magnetic steel and imported high-speed bearing.<br />High quality and durable in use.<br /><br />Specifications:<br /><img alt="" src="//www.tomtop.com/images/yinyong/RM2121.jpg" /><br />Package size: 10 * 8 * 8 cm / 4 * 3.2 * 3.2 in<br />Package weight: 200 g / 7 oz<br /><br />Package list:<br />1 * GoolRC 2860 4050KV Sensorless Brushless Motor<br><img src="//img.tomtop.com/product/xy/2000/2000/p/tt/r/m/rm2121-1-1682.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/tt/r/m/rm2121-3-1682.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/tt/r/m/rm2121-4-1682.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/tt/r/m/rm2121-9-1682.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/tt/r/m/rm2121-8-1682.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/tt/r/m/rm2121-7-1682.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/tt/r/m/rm2121-6-1682.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/tt/r/m/rm2121-5-1682.jpg" /><br>