Brand: Massi Product: Cover Size: 29x2.25 Diameter: 29 Width: 2.25 Colour: Classic Skin Tube: Tubeless Ready Modality: MTB Hoop: Flexible ETRTO: 57-622 Compound: TT Compound Technology: Skin Armor, Aramid Fiber Yarn BAR: 2.0-4.1 PSI: 30-60 TPI: 126 Model: Vortex Weight (g ±3%): 695 Weight in grams (±3%): 695 Tube: Tubeless Ready Compound: TT Compound: Provides the perfect balance between grip and traction. A combination of intermediate hardness compounds is applied to the base and central area of the tyre, which favor traction while maintaining a high level of grip, reduce rolling resistance, and increase resistance against punctures and wear. A softer compound is applied to the side knobs, which provides optimal grip even in the most demanding curves. Technology: Skin Armor: An additional layer of rubber is added under the tread which significantly increases its resistance to punctures. ARAMID FIBER Yarn: The ARAMID FIBER bead is lighter and more flexible than conventional steel bead rims. Thanks to its lightness, you can save up to 40 grams per tire. As an added benefit, tires with an ARAMID FIBER bead are easier to mount.