Word is that Dunlop plans to discontinue many of its 18″ rear models.
I was speaking with a Dunlop sponsored team this week and they are scrambling to figure out what to run. They say that the only 18″ rears that will be available for race use are the MX81 and AT81. The 606 and 908 will also continue.
The MX81 has already taken over in the East, so that is no surprise. But the AT81 has yet to gain much support in the west. In testing, the AT does not seem to match the performance of MX51 or 739 for open terrain use.
If this is true, that means that the newest models, the MX52, MX31 and MX71 will only come in 19″ sizes.