sprocket size

[thekingblaster]

I have stock size sprockets on my blaster
Im wondering what size sprockets i should go to i run motocross and my rear tire size is 18-10x8 and it seems like i have no first gear lol

 

[Blaaster]

It all depends on the speed needed to race the track, a fast track needs taller gearing.

My lad uses a 12:40 combo as he usually races short slow tracks.

1st gear is never used and the power on the holeshot has him leaning way up over the tank to keep the front on the dirt.

 

[Herpderplol]

speed i would do 14:40
power 12:40