Ok I'm looking for some new Rears, I just bought new Holeshot XCR 21x7x10 for the front, and now I wasnt to get some holeshots for the rear. I ride mostly XC type riding but I also do some sand riding. I want something tough at least 4ply, but I also like something that will give me a liitle slip, so that I can spin the bike around nice and easy. I like the characteristics of mx tires but I want the durability of and XC tire. I like the look of the XCR's but the side lugs don't look like it would let me slide real well. I also understand that they would give me a little more bite than i would like. The next tire I considered is the XC tire, but from all the pics I have seen, they look very balloon like, which i don't like. I may be wrong about XC tires though. Does anyone own the XC's or the XCR's if so let me know how they are. :huh: I'm also quite interested in the new MXR4's, they look perfect except for the fact that they are only offered in 19" and I want to run a 20"inch rear tire.