- Versatile Tool: This bicycle bottom bracket tool features an installation sleeve compatible with S13 and is designed for brackets with an outer diameter of 39 mm and 16 teeth, making it essential for various bike maintenance tasks. - Durable Construction: Crafted from high-quality 7075 aluminum alloy, this tool is built to withstand the demanding conditions of regular bicycle maintenance, ensuring long-lasting performance. - Compact and Portable: Weighing just 51 grams, this tool is compact enough to fit in your pocket or saddlebag, providing convenient access whenever you need it on the go. - Practical Applications: 1. Ideal for home mechanics performing routine bike maintenance and repairs. 2. Perfect for on-the-road adjustments during cycling trips, ensuring you’re always prepared for any issues. 3. A reliable tool for professional bike technicians looking for a durable solution to streamline their work. This bicycle bottom bracket tool combines functionality and portability, making it a must-have for any cyclist.