Inner Tube 700X35/38/40/42 Puncture Resistant Premium Thornresistant 3.6 Mm

700x35/38/40/42 Premium Thornresistant PUNCTURE PROOF Inner Tube 3.6 mmCST is a brand offering high-quality bicycle tires.

The high standard of workmanship is evidenced by the fact that CST is one of the world's largest bicycle tire manufacturers.CST tires are used in Poland by teams such as:CST 7R MTB Team, Hurom Sławno Accent Team, Michał Kwiatkowski Copernicus Cycling Academy, and many others CST butyl bicycle inner tube with a wall thickness of up to 3.6mmInner tube size:700 x 35-43 (622 x 35-43)Wall thickness:3.6 mm (450% thicker than standard)Weight:523 gValve:AV 40 mmThis inner tube has a much thicker wall than standard inner tubes, making it virtually impossible to puncture. It's ideal for use anywhere durability is a higher priority than weight. It's also great for everyday use, such as commuting.AV / SV / CAR valve, 40 mm long, fits most bikes.

The AV valve, also known as the Schrader valve, or car valve, is the most popular valve installed in inner tubes. These tubes can be inflated with a car pump or at gas stations using a compressor. (Valve diameter: 8 mm) ETRTO is the European Tyre and Rim Technical Organization. The ETRTO size is the best size to check if the inner tube you're buying is the same size as the one you currently have on your bike. These are numbers written on the tire in the same format as your postal code, for example, 32-622. This means the tire is 32mm wide and fits a 622mm rim. Therefore, the inner tube we're looking for must have a diameter of 622mm and a width appropriate for our tire.