Final Ratio.......
Driven Sproket / Drive Sproket = Final Ratio : 1
(Rear Sproket) / (Front Sproket) = number or rear sproket rotations against 1 rotation in the front.....
By example 48 rear / 16 front = 3 turns in the rear : 1 turn in the front
Note: this is a simple math, not counting if you change your Internal Gears ratios and/or final reduction in the gear box...
remember if U change your rear tyre, circumference changes by brand, again you have to do your maths again.
Ride Safe....... :thumbup: