Optimized for All Weather Conditions: These premium 55mm brake inserts are designed to perform exceptionally in any weather conditions, ensuring reliable stopping power whether it's sunny, rainy, or snowy. Low Wear Design: Crafted to minimize wear on your carbon rims, these brake pads extend the lifespan of both the pads and your wheels, making them a cost-effective choice for regular cyclists. Compatibility Guaranteed: Specifically engineered for seamless compatibility with SHIMANO Dura Race and Ultegra brake systems, these pads ensure smooth, efficient braking and easy installation. Multiple Quantity Options: Available in packs of 1, 2, or 4 pairs, allowing you to choose according to your needs and ensuring you always have spare brake inserts on hand for emergency replacements. Eco-Friendly and Safe: Manufactured in Mainland China with a commitment to environmental sustainability, these brake inserts contain no high-concern chemicals, promoting a healthier planet and ride. Description/Features: Engineered specifically for carbon rim friction braking, these brake inserts ensure optimal performance and safety. Crafted from a low-density, soft rubber composite, these inserts are designed to minimize wear on carbon rims, extending their lifespan. The unique shape of the inserts closely matches the contour of the rim, providing a shorter braking distance and enhanced control. Experience superior stopping power in both wet and dry conditions with a design that also reduces braking noise. Each insert measures 55mm in length, making them ideal for road and folding bicycles equipped with either C or V brake systems. Specifications: Item: Brake Inserts Material: Rubber Composite Intended Use: Wheel friction braking on carbon rims Compatible Rim Type: Carbon rims only Size: Length appro