The Associated Sonic 1525 is a 2500kV brushless motor sized for micro-scale RC applications. It features a sensored design with a dedicated sensor port, allowing precise low-speed control when paired with a compatible sensored ESC. The ribbed metal can aids in heat dissipation during extended run sessions. Features: 2500kV rating Sensored brushless design with sensor port Ribbed metal motor can for heat dissipation Micro form factor 7/7/26 cs