After a couple of years on the same back tire, I have finally worn down the rear knobby on my CRF250R. I’m not much for changing my own DB tire since I am the king at pinching tubes. So I went ahead and pulled off the rear wheel and guess I will shoot over later on next week to get a new one mounted. I can’t believe how expensive Dirt Bike tires are. I have been riding all my life and I am still blown away with what is considered acceptable pricing for moto accessories. Any of you wheelers out there that own or work at a moto house let me know!