Our Catalan Cava is a fine wine indeed. A minimalist tire for those who want the free speed of a high volume slick but need a tire that is more predictable in loose corners. -3D diamond file tread massages granular terrain for perceivably 20-30% more traction than a slick -Continuous center negative dark space aeronautic deltas for pure intoxicating SPEED -Slightly higher volume than the ROS, giving it the same effective outside diameter, leaving geometry unchanged when pairing with ROS up front. -Less susceptible to tread slashes than a true slick -Zero sidewall protection and no puncture protection on top for premium terrain massaging ride quality. If you are an aggressive rider who punctures often, don't buy these. Consider our Robusto -JFF means Just For Fun, but not only for fun- these tires are equally equipped for long days locked in the pain dungeon as they are for a Sunday tour of Portland's vegan doughnut shoppes. -Tubeless compatible -Tires packaged in nice, FSC, recyclable cardboard and sold individually