Teravail Standard Tube - 20 x 1.25 - 1.9 | 35mm Schrader Valve

What Makes the Teravail Standard Tube Work for 20-Inch Bikes?

The Teravail Standard Tube line covers the 20-inch wheel format with quality butyl rubber construction in a size that fits BMX bikes, folding bikes, compact city bikes, and smaller recreational builds. Sized for 20 x 1.25-1.90 inch tires, this tube handles the narrow-to-mid range of 20-inch tire widths common on bikes designed for agility, portability, or trick riding. The 35mm Schrader valve makes inflation as simple as it gets, compatible with any floor pump, hand pump, or gas station air supply without any adapter required.

Teravail's butyl rubber construction holds air reliably between rides and resists the pinch flats and slow leaks that come with the higher-pressure, smaller-diameter tube format. The 20 x 1.25-1.90 range spans a practical spread of 20-inch tire widths, from narrower city and folding bike tires to slightly wider recreational setups, giving riders one tube that covers most 20-inch builds without needing to carry multiple sizes. It's the right spare for any 20-inch bike in daily use.