The new slick is our newest tire in our line; it has a new tread pattern that gives it greater rolling resistance than other tannus tires; the new slick is made with a patented puncture proof resin called aither 1. 1 allowing the new slick design to reproduce the weight and strength of a standard tire and be the only airless bike tire that weighs the same as standard tire, tube and rim; Combination strip; In addition to the minimal weight and strength, the slick repels the elements and offers a 5000 miles flat proof ride guarantee; the new slick even stands out in wet conditions with increased grip and also does not offer stretch. in the heat.