Ok, I'm reading all of this good stuff about these, so now my interest is peaked! How long do they last on average? and is the smaller size good for front, or is there another michy thats not red that makes a decent front tire? I'm thinknig about buying a new set of tires in the next few days, so any advice is welcomed. I'm heavier than average, I guess like 195 right now, so please consider that. currently running the Maxxis Super tacky highroller size 2.5 on rear and the Tioga Factory DH 2.1 in front.