This is the Hobbywing COMBO-X7A XERUN.  It includes a 120 Amp XERUN ESC, 13.5T Sensored Motor, and an LCD Program Box.

Hobbywings have proven to be one of the most reliable brushless motor systems on the market!   You get a whole system for a GREAT price!!

ESC Specs:
1.1 Output:
      1) XERUN-120A ESC: Continuous current 120A, burst current 760A
     
1.2 Input: 4-9 cells NiMH/NiCd or 2-3 cells LiPo.  
1.3 BEC Output: 5.75V@3A linear mode built-in BEC
1.4 Resistance:
      1) XERUN-120A ESC: 0.0003 Ohm
       
1.5 Motor Supported: Sensored brushless / Sensorless Brushless.
1.6 Suitable Brushless Motor:  
     1) XERUN-120A Combo
      With 2 cells Lipo or 4-6 cells NiMH, 1/10 on-road: >=3.5T, 1/10 off-road:  >=5.5T
      With 3 cells Lipo or 7-9 cells NiMH, 1/10 on-road: >=5.5T, 1/10 off-road:  >=8.5T    

     
1.7 Suitable Car:  
      1/10, 1/12 on-road or off-road cars / trucks for competition race.
      1/10, 1/8 rock crawler.
1.8 Size: 43mm(L) * 36mm(W) * 33mm(H).
1.9 Weight:
      1) XERUN-120A ESC: 105g
 
NOTE: For 7-9 cells NiMH or 3 cells Lipo: You must change the standard cooling fan because it cannot work with such a high voltage, so please choose a high voltage fan or supply the fan from the receiver (+6V)

Although the picture shows an 8.5 Motor, this combo includes a 13.5 Motor.