Shimano SM-BH59 Olive and Connecting Insert

No, this kit is specifically designed for the BH-59 hose standard. It is not compatible with BH-90 systems, so please verify your brake hose model before purchasing.

While you can technically install these with basic tools, using a dedicated hose cutter like the TL6612 ensures a clean, square cut on the hose. A clean cut is critical for creating a reliable, leak-proof seal.

No, the olive is a crush-fit component that deforms upon installation to create a seal. Once it has been compressed, it cannot be reused and must be replaced with a new one to ensure safety and performance.

The primary difference is the internal diameter and the specific fittings required. BH-59 is typically found on older or entry-level Shimano hydraulic systems, whereas BH-90 is used for higher-performance systems; they are not interchangeable.

The hose model is usually printed directly on the brake line itself. Look for the text 'BH-59' stamped along the length of the hose to confirm compatibility.