Im currently in the market for a paddle tire for my 250x. Im trying to get out to pismo beach soon and glamis and/or gordens sometime this season but i need to get a paddle tire first forsure. Im thinking that a six cup is pretty standard for my bike, but ive been seeing alot more eight cups for sale, how would that work on my bike? also,would i be able to run a 19inch rear tire if i found a rim and everything? Thanks all.