Pirelli Cinturato Gravel H Tire - 700 x 50 Tubeless Folding Classic TanPirelli Cinturato Gravel H Tire 700 x 50 Tubeless Folding Classic Tan. The Cinturato Gravel H (Hard Terrain) is a gravel specific tire designed for compact terrain and the hardest surfaces. The tread features low tightly packed knobs and elevated ability to adapt to the terrain offering a large contact area and therefore excellent feel while riding. SpeedGRIP Compound adds features of mechanical resistance and chemical grip without compromising the