Design matters. XERUN V10 G3 It is an engine specially designed for top-level racing. The RMP of the G3 Stock engine is significantly improved, the KV and torque improved by 16% and 4% respectively, compared to the V10 G2 Stock engine.

  Specification XERUN-120A-SD V2.1 XERUN-60A-SD-V2.1 Current Continuous: 120A Burst: 760A Continuous: 60A Burst: 360A Input  * Note #1  4-9 cells NiMH/NiCd 2-3S LiPo Built-in BEC 5.75V@3A (linear mode) Resistance 0.0003 Ohm 0.0006 Ohm Motor Supported Sensored and sensorless brushless motor Suitable Motor With 2 Lipo or 4-6 NiMH  1/10 on-road: >=3.5T 1/10 off-road: >=5.5T  ...

XR10 PRO STOCK SPEC 1S The lightest in the world: 23.5g Programming / Updating / Reading data wirelessly: The integrated data logger can record the maximum temperature of ESC and motor as well as the maximum RPM. Built-in BEC boost with a maximum output of 6A and adjustable voltage between 6V and 7.4V for use with high voltage servos. The separate PRG / FAN port can power an external fan to maximize cooling performance or connect an LCD program card or WiFi module to the ESC. 

XERUN XR8 Plus 150A.  brushless 150A sensored / sensorless esc 1/8 - HW30113300