Park ToolBBT-59.2 Bottom Bracket Tool(Return to Product Page)

Bought an off-brand version this on AMZ, did not fit, was too tight. Used it to install 105 crankset on Specialized Roubaix.

Great for installation and removal

Well made product

I bought this to install Shimano Ultegra 6800 and XT8000 bottom bracket cups, which have a unique spline pattern. Like all Park tools, this is a solid piece of work. However, you need a 38 driver to use it, and I'm not sure it works substantially better than the plastic adapters that Shimano ships with their bottom brackets. Overall, this tool is another unitasker that costs more than the component and will be obsolete in 2 years when the component design changes yet again.