2 Pack 20″ Bike Tubes 20×1.90/1.95/2.125 SV32mm Schrader Valve 20″ BMX Bicycle Tire Tubes Compatible with 20×1.75 20 x 1.90 20 x 1.95 20×2.0 20 x 2.10 20 x 2.125 Mountain Bike Tire Tubes

Product Description

20 inch Bicycle Inner Tubes

Still searching for the most durable bike inner tube? Stop looking up now and try ours. It will exceed your expectation!

Features:

Made To Last: The bicycle mtb inner tube is made with steady and durable butyl rubber. It shows amazing sealing performance, ozone resistant, anti-aging and electrical insulation merits.

Size Available: The bike tube 20”×1.9~2.125”. It fits tire width 1.9”-2.125”.

Comfort is the first: The replacement tires ensure better shock absorption for upgrade riding experience. Your safety and comfort is our top concern.

Tube Size

First and foremost, you want to make sure the tube fits your tire. To determine the size you need to check the side wall markings on your tire where you’ll see two numbers separated by an ‘X’. The first number refers to the tire’s diameter.
The second number refers to the tires width. Select the tube that has the exact same diameter as your tire. Your tires width should fall into the range of widths listed on the tube packaging.

Valve Type

Standard (also called Schrader) valves are the most common valve type for bicycles. This short, sturdy valve is also used on car tires and other inflatables.
Presta valves are typically found on performance road and mountain bikes. They have built-in valve locks which you twist to open before inflating.
An easy way to remember is: ‘S’ is for Standard (Schrader, Short, Sturdy) and ‘P’ is for Presta (Performance, Premium).
All inflatable tubes are subject to deflation from mis-installation and certain hazards.

Valve Length：32mm
Standard bicycie tire Schrader Valve length

Check

Before installing, check to see if the inner tubes are completely sealed by putting them in water, if there are any bubbles, they are already damaged.

installation

Inner tube installation sequence and method

Package Dimensions ‏ : ‎ 7.01 x 5.55 x 2.2 inches; 15.52 Ounces
Manufacturer recommended age ‏ : ‎ 3 months and up
Date First Available ‏ : ‎ May 22, 2019
Manufacturer ‏ : ‎ YunSCM
ASIN ‏ : ‎ B07S37JGDT

【SIZE】 32mm Schrader (Regular valves). Fit 20-inch wheel
【MORE DURABLE】 The bike tube is made from premium butyl rubber. It features better sealing performance, ozone resistant, anti-aging, shock absorption and electrical insulation merits.
【Easy To Install】Installation is quick and easy. Please follow inflation guide when airing a tire from a complete flat. Hassle free to replace your old tire tubes within minutes which is time saving and efficient.
【Safe Bike Tires】 The butyl rubber tire tube replacement absorbs shocks on bump road for a comfort and safe ride. It is heat resistant and stands wear and tear for daily use.