SCK 20-Inch Schrader Valve MTB Bike Tubes & Tire Levers, 2-Pack

Last updated date: November 14, 2020

DWYM Score

9.0

SCK 20-Inch Schrader Valve MTB Bike Tubes & Tire Levers, 2-Pack

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We looked at the top Bike Tubes and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Bike Tube you should buy.

Editor's Note November 30, 2020:
Checkout The Best Bike Tube for a detailed review of all the top bike tubes.

Overall Take


In our analysis of 10 expert reviews, the SCK SCK 20-Inch Schrader Valve MTB Bike Tubes & Tire Levers, 2-Pack placed 3rd when we looked at the top 6 products in the category. For the full ranking, see below.

From The Manufacturer

Our 20 inch bike tubes can widely fit 20" Inch wheel, Width between 1. 75-2. 125 tires. High quality and durable: our tubes are made of high butyl rubber material, better air tightness, heat resistance, and durable. 20" X 1. 75" To 2. 125", 32mm Schrader (regular) valve/ removable core. Satisfaction : If for some reason, you are not 100% satisfied with your purchase, you can return it for a full refund!

Expert Reviews

User Summarized Score

9.0
1,169 user reviews

What experts liked

Great price, very easy to install and has 2 tire levers.
- BIKE SMARTS

What experts didn't like

The free levers are weak and thinner than others.
- BIKE SMARTS

An Overview On Bike Tubes

If you’re experiencing issues with your bike tires, you may be thinking about getting a new bike tube. This is the part of the bike tire that actually holds the air and keeps your tire inflated. It is made of soft rubber which is pliable. There is a small air valve on the tube which is where air goes in and out. The inner tube is protected by the actual bike tire, which is made from a firm rubber casing. The bike tire ensures that any small items like glass, nails and debris do not puncture the inner tube. If the inner bike tube does get punctured, then it can be patched or replaced.

The most important element to check when buying a bike tube is the size. You’ll need to know the diameter of your wheel, in addition to the width of your tire, in order to pick the right sized bike tube. Typically your bike tire will have these dimensions on them, often written as in Diameter x Width. If your bike tire says 24 x 1.75, for example, it means that the diameter of your bike tire is 24 inches and the width is 1.75 inches. Knowing this will help you select the right inner tube for your bike.

The Bike Tube Buying Guide

  • Be sure to select the right valve stem for the bike tube. This is the part of the wheel that enables air to go into the bike tube. There are three common types of valve stems: Schrader, Presta and Woods. The most common type of valve stem you’ll find is the Schrader, and this is found on most recreational bikes. The Presta valve stem is more professional in nature, and used on bikes for competitive cyclists. The Woods valve stem is quite rare, and usually found on bikes in the Netherlands and some parts of Asia.
  • The material of the bike inner tube affects the durability. Typically, they are made from butyl or latex. Butyl is a common and affordable option, and are available in multiple different sizes. Keep in mind that this material is heavier than latex and can cause rolling resistance. This kind of material is easy to patch and repair.
  • Latex is a lighter option and causes less friction. However, it is also more costly, and can be fragile in some cases. It is more difficult to patch and repair as well.