XeRun XR10 PRO Stock Spec V4 Sensored ESCHWI30112401 THIS WILL BE DROP SHIPPED FROM OUR VENDOR! XeRun XR10 PRO Stock Spec V4 Sensored ESC The Black Edition XR10 Stock Spec ESC features a smaller footprint and lighter weight than the older XERUN Stock Spec. It is designed for Stock (Non Timing) racing with motors down to 13. 5T in Off Road applications and 10. 5T motors in On Road applications. It is designed for 2S use, but can operate with 3S power with the use of a high voltage fan.