26 Inch MTB Inner Tube For 1.75 To 2.5 Inch Tires With 40Mm Schrader Valve 559 ISO Diameter Seamless Mold Cured Construction Durable Mountain Bike Tube

26 Inch MTB Inner Tube for 1.75 to 2.5 in Tires
✔️ 26x1.75-2.5in MTB tube, 559 ISO, seamless mold cured, 40mm Schrader

This MTB inner tube is designed for 26-inch wheels and tires ranging from 1.75 to 2.5 inches, with a 559 ISO diameter and a Schrader valve. It's commonly used on mountain bikes for trail rides and daily commutes.

✅ Fits 26 x 1.75-2.5 in tires (559 ISO diameter)
✅ 40mm Schrader valve for easy inflation
✅ Seamless, mold-cured butyl rubber for durability
✅ Uniform roundness with vulcanized construction near the valve stem
✅ 2-year warranty backed by the manufacturer

💡 What is an inner tube used for on a mountain bike and how is size determined?

In short, inner tubes hold air inside the tire and must match wheel diameter and tire width for a proper seal.

• Sizing depends on wheel diameter and tire width for correct fit.
• Schrader valve length of 40mm suits most MTB inflators and rims.
• Seamless, mold-cured butyl improves durability and valve-stem reliability.
• Quality control and a 2-year warranty provide confidence in performance.