Blackburn Heavy Duty 20″ Bicycle Inner Tube, Schrader Valve

Blackburn’s Heavy Duty 20″ 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: 1.75″ – 2.25″ and works well with these types of bikes: Kids Bikes, BMX Bikes and Mountain Bikes. Tube has a standard Schrader valve. Tube consists of 20% thicker rubber to help prevent flats on the trails Blackburn inner tire tube works best with these bikes: Kids, BMX, Mountain Mold cured rubber for consistent side wall–prevents high pressure blow outs Schrader Valve Type