well if u would use a 400 can motor which is perfect for the vehicle and not a 180 size motor u wouldnt have to use a fan.... trustme I have tested a few motors and u are defeating ironmanpurpose bygearingthe 6800 sohigh..... wont be as fastas you think
compare ur 6800kvmotor geared at 12/49 and my 6800kv motor geared at 16/45.... which one do u think will be faster and cooler running