Duncan Brittwrote a review of Continental X-King ProTection Tire - 26in on January 19, 2016
Familiarity: I've put it through the wringer
I rode these tires for a full season and like them for the most part. The traction was excellent for the area that I ride in (northern UT). However, the side walls break down quickly and seep out liquid, so you always get back from a ride with mud caked to your wheels and crap flung all over your frame/fork. Mine bit the bullet when the sidewall got a small slit just above the bead. It took me a while to figure out what the hell was going on because the whole tire was wet and made it hard to find the issue. I would only recommend these if you found them on closeout and didn't mind replacing your tires in a month or two.