Pirelli SporTube 29 x 2.1/2.3 Presta 48mm

The Pirelli SporTUBE is a classic cycling inner butyl tube. It's the go - to choice for the world's most reliable air retention system. With a wide range of sizes and specs, it suits all cyclists, whether you're a road racer or an urban commuter.

Using the Pirelli SporTUBE is easy. First, make sure your bike tire is flat and remove the old tube. Then, carefully place the new SporTUBE inside the tire, being careful not to pinch it. Insert the Presta valve through the valve hole in the rim. Inflate the tube to the recommended pressure, which you can usually find on the side of your tire. When it comes to maintenance, check the tube regularly for any signs of wear or damage. If you notice a small leak, you can use a patch kit to fix it. Store the tube in a cool, dry place away from direct sunlight to keep it in good condition. And always remember to handle the tube gently to avoid punctures.