I have always used Dunlop’s and all my friends do as well, so I have to rely on you guys for an honest opinion. I have my own motocross track, which consists of 99% hard pack during the summer (more like concrete with gravel on top). My Dunlop 739's hold up well for the conditions but is there a longer lasting tire out there? Some here on the board have mentioned Maxxis while others suggest Michelin’s. What is the most durable in your opinion? I'm only looking for a durable practice tire, not one to race on. Any comments or suggestions will be greatly appreciated.