The Challenge Gravel Grinder is the best all-around tire in the Challenge Gravel range. This tire offers a perfect balance of traction, cornering, and braking, making it suitable for a variety of terrains and conditions. The tread pattern ensures smooth rolling at higher speeds, while the side knobs provide stability and control on soft or twisty surfaces. The tire has a sturdy construction with added puncture protection, a durable rubber compound, and tough sidewalls, making it long-lasting and reliable. With the Challenge Gravel Grinder, you can enjoy your gravel rides with confidence. Product specifications: - Article number: 01938 - EAN: 8855627019384 - Brands: Challenge - Model: GRAVEL GRINDER - Bicycle type: Gravel bike - Net weight (g): 375 - Maximum pressure (PSI): 75 - Maximum pressure (Bar): 51 - Tire size (Inch): 28 - Tire type: Folding tire - TPI: 120 - Segment: Gravel - Tire size (French): 700x38C - Tire width: 38 - Inner or outer tire: Outer tire - (ETRTO) Tire size: 38 - 622 - Color: Black"