Medusa Afterburner V2 BL motors

[TexasSP]

I ran my setup again today after getting a thermometer. Temps were 125-135 esc, 100-105 batteries and 165-175 motor. Ambient temps are 95-98. The thing is I am geared 20/68 now, but yesterday when I was 22/68 the esc shut down. So I don't think gearing the pinion higher is the answer and I don't have anything smaller in pinions right now. The testing was done mostly in thin grass (only slightly thicker than say a golf course). I got to run for about 5-8 minutes until an unforeseen object caught the maxx and busted the rear shock tower. It was still drivable though dragging its butt on the ground.