I just got done ridin my 300ex with the holeshot mx's on it.First thing it doesn't slide well at all.With the razr's I can throw it around at will.Second it tops out at about 35 mph.IF you got these tires you would have to regear.3rd they work great on my track.It doesn't haven't anyjumps yet except for a small ledge.4th there is no ground clearance hardly at all.

But I would still recomemd them for mx and play racing.On tracks only though.No trails the get holes real easily.

moded out 86 trx250r
97 300ex