BBP-1.2, Bottom Bracket Tool, SetThe BBP 1. 2 quickly and accurately installs bottom bracket bearings, cups and adapters into press fit bottom bracket shells. The complete set of precision machined bushings matches up with most common bottom bracket cup dimensions. The press assembly features a comfortable handle, oversized shaft, and magnetic back plate for quick and easy assembly. BBP 1. 2 Features Six sets of precision machined bushings in nine sizes Compatible with bottom bracket