Overall Ratio "I" Calculating

Overall ratio "i" calculating
Transmission ratio
Transmission ratio, Refer to No. of teeth driven gear: No. of teeth driven gear

Ratios Formula
IG = gear ratio ZG2: ZAG
IA = axle ratio ZA2: ZA,
ioV = overall ratio jG X jA

Example:
6th gear Final drive
Drive gear ZG = 38 ZA = 9
Driven gear ZG2 = 26 ZA2 = 37
Calculating:
jG = 26: 38 = 0.684
jA = 37:9=4.111
iov = (26: 38) x (37: 9) = 0.684 x 4.111 = 2.813