If you can clarify the question I will try to help, but I don't have a clue as to what you are asking.
Count the number of teeth.
41 teeth on the ring gear, 10 on the pinion gear.
Gear (A) has 15 teeth , Gear (B) has 10 teeth. Gear (A) makes 14 revolutions . How many revolutions will Gear (B) make?
If the gear box has gone on your YZ 80 motorbike you will find that your bike slips out of gear very easily. You will notice that there are broken teeth on the gears.
41 and 11
41
43 ring gear 14 pinion
The gear ratio is the number of teeth in the driven gear divided by the number of teeth in the drive gear.
I have no idea what you mean by "gear bike", so the question can't be answered.
Number of teeth on driven gear divided by teeth on driven gear. Example: 40 teeth on a ring gear and 10 teeth on a pinion will be a 4.00:1 ratio.
count your teeth on your ring gear <big gear> and on you pinion <little gear> and the divide the ring gear teeth by the pinion
Top Gear Hyper Bike happened in 2000.