Maxxis Flyweight Tube

The modular valve system means the valve stem is not permanently attached to the tube. You will need to purchase a compatible valve stem separately to complete the setup, which allows you to customize the valve length or replace it if damaged without needing a new tube.

While these tubes are excellent for reducing rotating weight, they are designed primarily for performance and speed. Because they are lightweight, they may be more susceptible to punctures than standard, thicker tubes, so they are best reserved for race days or fast group rides.

Yes, these tubes are designed for 700c wheels. They are compatible with tire widths ranging from 18mm to 25mm, making them a great fit for most standard road bike setups.

At 68 grams, these tubes are significantly lighter than standard butyl tubes, which often weigh over 100 grams. Reducing rotating mass at the wheel is one of the most effective ways to improve your bike's acceleration and handling.

No special tools are required. Once you have the compatible valve stem, it threads securely into the tube's base, similar to how you would install a standard valve extender or core.