First of all, Id give it to holeshot becuase they think of all these designs before razr copies it into their own slightly altered version. They are both 6 ply. The thing I like more about the holeshot is its slightly lighter, has a softer rubber compund for a wrap around traction, and tall knobs give it good traction in looser terrain. Down is they arent a great hookup on hardpack, or asphalt. The razrs always have a harder compound making them last a little longer, but heavier, and stiffer. So they are prob a little less prone to puncture and wear. Holeshot didnt take wear into consideration when it came to performance first, besides, wear isnt to much of an issue in gncc as it is rec riding.