2-Pack Mountian Bike Fat Tire Tubes 20 x 3.0 AV33mm Schrader Valve 20″ Bicycle Tire Tubes Compatible with 20 x 2.5 20 x 2.6 20 x 2.75 20 x 2.8 20×3.0 Mountian Bike Tire Tubes

YunSCM Inner tubes YunSCM inner tubes are made from high quality durable material and come in a various range of sizes from 12 x 1.75 up to 29 x 1.75. YunSCM inner tubes also cover mountain bike tyres They also have the option of either a Presta or Schrader valve type. Schrader Valve View larger Presta Valve View larger Schrader Valve A Schrader valve is the thicker valve recessed inside a metal stem. These can be pumped up with air in more places since most airing equipment can fit these type of valves. Most of all childrens and entry level adult bikes come with Schrader valve wheels. Presta Valve A Presta valve is generally used on inner tubes for road bikes and other bicycles that require a high amount of air pressure. Presta valves are the preferred choice valve for high performance wheels due to its ability to hold in the air, and maintaining a higher air pressure for longer. Inner tube sizes available YunSCM inner tubes come in a multitude of sizes to cover the various tyre sizes people ride. The smallest tube available is 12.5 x 1.75 / 2.125, up to largest at 29 x 1.75 / 2.125. Mountain bike tyres are also taken care of with sizes of 700 x 18/25c all the way up to 700 x 35/43c. About YunSCM YunSCM produces a broad range of cycling accessories that are both stylish and practical. YunSCM products are designed for all kinds of cyclists combining fitness with fun. The products are designed to ensure a safe and comfortable ride whether in traffic for a daily commute or taking relaxed rides in the park. Features of YunSCM Innertubes Made from strong durable 100 per cent Butyl Come in a wide range of sizes to suit all tyres Available in either Presta or Schrader valve