ok i was looking for a set of wheels i noticed their 20's r cheaper or same price as 17's or 18's on stingrays and rapids y is this i have 20's at the moment since i bought my truck with them but i want 17's rapids so who knows what is up with this

 

I've wondered this as well. I'm guessing it's due to a higher demand or popularity of the 20's has something to do with the prices.

 

I would guess they are overstocked on the 20s, probably because of the high demand for them.