The Shimano SM-BH59 Connect Bolt Unit is a high-quality hydraulic brake hose connector designed for optimal performance. Weighing just 10 grams, this lightweight unit is compatible with various Shimano hydraulic disc brake systems, ensuring a secure and reliable connection. The SM-BH59 features a durable construction that enhances the overall durability and longevity of your braking system. With its easy installation process, this bolt unit allows for quick and hassle-free maintenance. Designed to meet the highest standards of quality and performance, the Shimano SM-BH59 Connect Bolt Unit is an essential component for maintaining the efficiency and safety of your bike's braking system. Upgrade your ride with this reliable and efficient connector from Shimano.