The Orange Tsunami was the first RS wheel, and came out in the Fall of 2003 as the 65mm Tsunami.
A very high rebound wheel that will eat up rough terrain, without ever feeling mushy.
This is what I call a true "street wheel". That is, one that will get you everywhere smoothly. Be it rough roads, sidewalks, nasty ditches, Mt Baldy pipeline, European cobblestones, or just a ride down to your local store. Much more responsive than the usual 78a "Gummy/Cruiser" wheels you see everywhere. The high-rebound 85a durometer urethane is like Superball material, and knocks down pretty much anything in your way.