I have just under 12k on the bike and the tires are pretty bad and both are cupping and the front is way worse. Not sure but I will have to replace sometime this fall.
have 8K on mine.. back is just fine.. but the front is trash. at 60mph i pull in the clutch and turn the bike off... sounds like a 4 wheel drive the tire is cupped so bad. trying to keep a cool head when talking to the dealer about replacement. but when they look at you like a puppy hearing a strange sound for the first time... it sure is hard not to choke the $%& out of them.
Replaced the front D407 with a D408 at 9500 because of cupping. The rear is at 12,600 and has 4/32 of tread left. I'm thinking 15K or more before needing a new rear.
9700 front has some cupping hoping to get another 2-3k out of them. Front tire started cupping around 4k miles but has not gotten any worse. Looks like I'm going to change them both about the same time.
have 8K on mine.. back is just fine.. but the front is trash. at 60mph i pull in the clutch and turn the bike off... sounds like a 4 wheel drive the tire is cupped so bad. trying to keep a cool head when talking to the dealer about replacement. but when they look at you like a puppy hearing a strange sound for the first time... it sure is hard not to choke the $%& out of them.
Dealer won't cover your front - join the club of disgruntled Dunlop D407F chumps.