The 500ss is a nice sled ( the same motor as in the 99 mxz 600) its a 600.
difference is bigger carbs and bigger exhaust.
the 500ss is a nice sled and I have heard great things about it. my buddy who left for irag bought one this past fall.
i bought an 04 rev 600ho couple days later. he had 96 stud up the middle.
we went to the local grass drags where i raced my 99 mxz 600.
both sleds had 0 miles on them. :inlove:
we line up ( 500foot strip) he got me out of the hole and had me to about 100 feet if that. I realed him in very quickly and went by him half way down the track.
there is NO COMPARISON to the 600 and the 600HO. the HO is a power plant. I have onwed both. I tweaked my 99 ( head work, clutching,reeds,y pipe work, bored, port match cylinders to the exhaust.