HPI FLUX PRO 7.5T
 

i have just got 1 of these and i am not sure what gear ratio to run at. i had an lrp vector 6.5 in my X6 on 23/78 and it was getting very very hot i am not sure if this caused my speedo to blow (lrp sphere 2007) but now have a hobbywing 120a just not sure were to start any help please