This is too funny. Bill and Husun are right. And for the people who can't understand:
Go get on a 12 speed bike and put it in the hardest gear and try going up hill...record your top speed.
Now try the same thing in the 11th gear and try giong uphill...record your top speed.
Keep doing this until you get to the easiest gear and find which one gave you the highest speed. The automotive version of this situation in that 3.27 gears are like going uphill in 11th gear while 4.10s are like 8th. They have a Mathematically higher top speed but when drag is a factor, you need more torque. Now you'll also see that your top speed goes down as you get to the low gears like 1 or 2 (depending on how steep the hill is). This is like have 6.27 gears.
If you still don't get it after trying the experiment, PLEASE go prove us all wrong by swapping in some 2.30 gears and raising your topspeed.