Blackburn Heavy Duty 29″ Bicycle Inner Tube, Schrader Valve, Black

Blackburn’s Heavy Duty 29″ Inner Tube feature a thick casing under the tread to resist flats better than a standard tube. This rubber is 20% thicker compared to a standard tube. The tube’s high-quality mold-cured rubber creates consistent thickness without weak spots across the entire tube. The Blackburn bike tire inner tube fits tire widths: 2.1″ -2.3″” and works best with Mountain Bikes. Equipped with 20% thicker rubber which helps prevent flats out on the trails Works best with Mountain Bikes Mold cured rubber for consistent side wall–prevents high pressure blow outs Schrader Valve Type