Hi craig
yes it's the gv cage and it weighs a ton ?
I did replace the esc a while a go as it went pop and been using the one from hobbyking I thought for the price it would of been a decent one
the link below is the one I had
http://www.hobbyking.com/hobbyking/store/__33984__TrackStar_150A_GenII_1_8th_Scale_Sensored_Brushless_Car_ESC_PC_Programmable_.html?strSearch=Turnigy%20track%20star%20150