which one?

1-5 are geared way close for stock then you got 6th which is way taller. Gears 1-5 compared to other atv's blasters are quite a bit lower. True about the 18in tires then it's almost a must for 14/40.
 
You can't hardly even pull sixth gear with the stock gearing! how the hell are you going to pull it with higher gears!!!?????

Oh that's right all you guys run them TINNY!!!! little turf tires with no tread on them to hook up!

=)) ya'll a trip! rotfl but i agree wit wrench man only that when i had a 14th sproket is when i could barely pull in 6th. i used to be wide open in a field and have to shift down to 5th just to catch the powerband again. but ONLY2STROKE is right it only max it out to just 55-65 mph. i would suggest a port job or a bore and port job before you up your front sprocket.