I have been running a Bridgestone Gritty ED78 on the rear for the last year or so along with the M603 Bridgestone in front. The front seemed a bit slippery lately so I replaced the front with the new Dunlap 51 which takes the place of the 756. I have heard nothing but good reviews on this new tire. I was going to try the Maxxis in the rear but after looking at them and getting input from someone who has raced using both, I went with the Gritty again. The Maxxis is quite square compared to the roundness of the Gritty and I don't think turning on a square tire works very well. I have never had anything bad to say of the Gritty so if it ain't broke don't fix it. Some of you guys run those enduro tires but I can't see them working for my style of riding. Just my opinion here.