Efficient repair With this bicycle bottom bracket wrench set you can easily switch repair modes and effectively remove the bottom bracket for stress-free maintenance during removal and installation. Suitable for multiple models Supports installation and removal of three common bottom bracket standards on the bicycle center axle. This bottom bracket installation and removal tool is compatible with Shimano Hollowtech II, BB9000 and BBR60 external bottom brackets. High-quality material Made of heat-treated steel and chrome-plated, providing a stable structure that resists deformation. It meets most bicycle maintenance requirements and helps keep the bike in pristine condition even after years of use. Non-slip handle Rubber-coated handle is comfortable to hold, prevents hands from slipping, and provides a secure grip when removing even the toughest bike bottom brackets. Use scenarios - Routine home maintenance: replace worn external bottom brackets on bikes using Hollowtech II or BB9000 systems. - Upgrade or replacement work: install and remove bottom brackets on road and mountain bikes with ease. - Workshop use: service multiple bikes efficiently in a professional bike shop, ensuring compatibility with Hollowtech II, BB9000 and BBR60 standards.