DUALSKY XM4255EGL outrunner w/motor front extension

Dualsky XM4255EGL brushless motor — 42mm/55mm stator.

The XM number encodes the stator: 42mm is the stator diameter and 55mm the stack length, so the code tells you the physical size of the motor rather than a marketing class.

The EGL suffix denotes the version with a motor front extension, which moves the mounting face further forward so the motor can sit against a firewall with the shaft reaching forward into a cowl.