Continental ContiTech Presta Valve Tube

This tube is designed specifically for 650c wheels with tire widths ranging from 18mm to 25mm.

The 60mm valve length is generally suitable for standard road rims. If you have deep-section aero rims, you may need a valve extender, but for most standard wheelsets, this length provides plenty of clearance for your pump head.

While these are lightweight tubes designed for performance, they are built with high-quality, seamless butyl rubber. They are durable enough for regular training, though they are thinner than standard tubes to save weight, so you should maintain proper tire pressure to prevent pinch flats.

These tubes weigh 70 grams each. Depending on the weight of your current tubes, you can expect to shed nearly 30% of the rotating mass, which helps improve acceleration and handling responsiveness.

Individual testing ensures that every tube is airtight and free from manufacturing defects before it leaves the factory. This quality control step is crucial for lightweight components, as it minimizes the risk of a failure right out of the box.