since you do not seem to understand, iLL TAKE YOU TO SCHOOL...
i ran a 16 tooth front sprocket
i ran a 30 tooth rear sprocket
this gives you a 1.875 ratio with 20'' rear tires
the banshee's Primary Gear is 2.869 this is at 10,000 r.p.m's for a built banshee.
Yamaha banshee Gear ratios are as follows
1.st gear ratio is 2.461
2ed.gear ratio is 1.812
3erd. gear ratios is 1.500
4th. gear ratios is 1.250
5th. gear ratio is 1.045
6th. gear ratio is 0.875
so technically speaking it would run 126 mph, this minus the tire friction and wind speeds produced there for i ran 119 mph and not the full 126.