20x1.90-2.50 Bike Inner Tube - Schrader 40mm

20" Replacement Tube for Bicycles and E-Bikes

This 20x1.90-2.50" tube is built to help your 20-inch bicycle or electric bike roll along evenly. It works with tire widths from 1.90" up to 2.50" and comes with a 40 mm Schrader valve that fits most pumps. Much like other scooter tires options, this tube provides a steady ride and serves as a dependable replacement when your existing tube becomes worn or damaged.

Valve and Weight

This tube uses a 40 mm Schrader valve, the same style found on car tires, so you can inflate it with a standard pump or at a gas station air station. At 151 grams, the tube keeps rotating weight low, which can help your ride feel more responsive.

Compatibility and Sizing

This tube is made for 20" (406) bicycles, e-bikes, and other small-wheel rides. Before buying, confirm your rim diameter and tire width so the fit is correct. It covers several widths, including 20x1.90, 20x2.00, 20x2.125, 20x2.25, 20x2.35, and 20x2.50, which makes it a flexible option for many 20" bikes.

Specifications

• Size: 20 x 1.90-2.50" (ETRTO 51-62 x 406)
• Valve Type: Schrader (AV), 40 mm
• Fits: 20-inch (406) bicycles and e-bikes with 1.90" to 2.50" wide tires

Fitment

Fits:

• 20-inch (406) bicycles and e-bikes (tire widths 1.90" to 2.50")

How to choose: Check the size printed on your tire's sidewall. A 20 x 1.90-2.50 tube suits tire widths from 1.90" to 2.50" on 20" rims.

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