Rubena Bicycle V96 Scylla Tubeless Folding Tire Made in the Czech Republic Weight: 630g(29x2.25 Black), 635g(29x2.25 Grey/Black), 615g(27.5x2.25 Black), 620g(27.5x2.25 Grey/Black), 535g(26x2.1 Black), 540g(26x2.1 Grey/Black) Black tread features 60 durometer while the grey/black portions are 45