b4 gearbox reduction ratio? 2.4 or 2.6?

[DusterX17]

hi there.

i just recently figured out (sorta) how to calculate the gear ratio (so i can determine what pinion gear i need to get for my brushless motor)

but i found i need to know the gearbox ratio of the b4..

i saw that the b2 and b3 are 2.4.. and someone said that the b4 has a ratio of 2.6.. but it was not fully reliable. these two numbers make a difference. so i want to make sure so i don't burn out the motor..

thanks.