I'm lookin to get some new rear tires. Stock is AT21 x 10 - 8
I'm new to ATVing and I'm not sure what size & brand to go with.
A friend of mine has a pair of Spider traks on his raptor. I really like the tires but i'm not sure if I should put them on my blaster.
I'm actually not too sure what the numbers mean. AT21 x 10 - 8
Is the 21 the circumference of the tire? 10 diameter? 8 width?

 

for the back if you want a flattrack depending on where u ride either get holeshots or razrs but im not sure where u ride and what kind of conditions u ride in anyways get 20" do not get 18" they sux. also get atleast a 4ply tires and they wont wear as easy as stock. hope i helped. any other questions send me a pm.

 

The tire specifications AT21 x 10 - 8... what does the 10 and 8 stand for?