Okay, got my pair of Heidenau K60 Scout tyres, 2012 DOT, fresh from the factory. 150 rear, btw. They look road ready and they sure are. Also, they are pretty close to the TKC's as far as light stability and traction, but i emphasize the 'light'. Ever since i installed them, i get these vibrations from the front wheel, as high as 40 kph, after which , on the dot, they go away. You slow down, there they are. I assume it's the new tread i have to get used to, but last year i installed a front new TKC and there was no vibration at all. I made sure and triple checked the rotation on both tyre and and rim. Also, i checked the pressure and it's within spec. Any ideas?