By wrong dimensions you mean completely non useable?

I am just having a hard time paying for $190 dollars each for the X2 rear sacks, when the generic 400 lbs are $199 for 2 bags.

I also found these, which I guess would work. If you do the Math they are 275 lbs each, so 550 lbs total on top of the rear, for 120 dollars.

http://www.ebay.com/itm/Skiers-Choic...3cd450&vxp=mtr