Press-fit bottom brackets require a different removal approach than threaded shells. You can't just thread a tool in and turn—the bearings are pressed directly into the frame, which means you need to drive them out from the inside. The Park Tool BBT-90.3 handles this with a drift-style system that works across the full range of press-fit standards without damaging frames or bearings in the process.

The set covers BB86, BB90, BB92, PF30, BBright, BB30, and 386EVO standards, which accounts for nearly every press-fit bottom bracket you'll encounter in a shop environment. Each bearing cup gets its own sized drift head that contacts the bearing's inner race rather than the outer edge, preventing the kind of frame damage that happens when you improvise with hardware store solutions. The heads thread onto a central shaft, and you drive the assembly through with a mallet or soft-faced hammer.

What separates this from cheaper options is the precision machining on each drift head. Press-fit tolerances are tight by design—that's how the bearings stay in place—so your removal tool needs to match those tolerances. Sloppy fit means the drift contacts the frame instead of the bearing, and aluminum frames don't forgive that kind of mistake. The BBT-90.3 heads are sized to clear the shell bore while still making full contact with the bearing race.... Read More