The PRO Gap Cap Expander Long is a top - notch expander cap designed for carbon steerer tubes. It's crafted from UD carbon, offering excellent performance. With a minimum inner diameter of 23mm, it ensures a proper fit. The Gap Cap Expander Short has a depth of 50mm, which makes it suitable for various applications.

Using this expander cap is easy. First, make sure your carbon steerer tube has an inner diameter of at least 23mm. Then, carefully insert the cap into the tube until it fits snugly. When it comes to maintenance, keep it clean and dry. Avoid using harsh chemicals that could damage the UD carbon material. If you notice any signs of wear or damage, it's best to replace the cap. Also, store it in a cool and dry place when not in use to prolong its lifespan.