BB30 Bearing Puller

A BB30 bearing pressed into a 42 mm shell wants to stay there. Removing it without a dedicated puller usually means hammer-and-punch percussion through the shell from the opposite side; which works, but introduces side load on the shell during extraction and risks scoring the shell bore. A scored bore is the hidden cause of a creak that comes back on the next bearing.

The 1625/2 is the bearing puller built around the geometry problem. The expanding tip threads into the bearing's inner race; tension on the puller body draws the bearing out of the shell along the axis, with no side load on the shell bore. The expanding mechanism grips the inner race firmly enough that the bearing comes out clean, even when it's been press-fitted for years and surface-corroded to the shell.

SRAM DUB compatibility

The current 1625/2 is the BB30-and-DUB puller; the same expanding-tip geometry that handles BB30 / PF30 / PF30A bearings also fits the SRAM DUB bearing's inner race, useful for shops that work on both press-fit BB families on the same week.

How it's used

Thread the puller's expanding tip into the bearing's inner race from the BB shell side. Tighten the puller body to expand the tip against the inner race; the tip's gripping surface bites into the race without needing to over-engage. Pull the bearing out along the shell axis using the puller's handle; the bearing slides out without the percussion that a hammer-and-punch extraction needs.

For the second bearing on the same BB shell, repeat from the other side. Each bearing comes out under controlled tension, not percussion; the difference matters on carbon shells and on aluminum shells with the cylindrical-tolerance precision that BB30 was designed around.

Compatibility

• BB30 / PF30 / PF30A press-fit bearings (42 mm shell ID)
• SRAM DUB bearings
• Other current press-fit BB bearings using common inner-race IDs in the same range
• Not for threaded BB cups (BSA, BSA30 threaded, T47, Italian); those use the appropriate notched socket

Specs

• Material: premium flex plus carbon steel, hardened and tempered
• Surface finish: trivalent chrome plated per ISO 1456:2009
• Expanding tip: sized to BB30 / PF30 / PF30A and SRAM DUB bearing inner races
• Includes: the puller assembly with expanding tip and handle

Built in Zreče

Unior has been forging hand tools in Zreče since 1919, and is the official technical partner of multiple World Tour and downhill teams. The 1625/2 works across the BB30 / PF30 / PF30A / SRAM DUB press-fit envelope without specialized adapters; one tool covers the press-fit BB families a shop sees most often on the bench.

Pro tip from our mechanics

When a press-fit BB starts creaking, the diagnostic instinct is to suspect the bearing first. Sometimes that's right; often it's not. Before pulling the bearing, check the BB shell bore for ovality with calipers and inspect the bearing's outer race for crud, dried grease, or hairline corrosion at the press-fit interface. A clean bore and a sound bearing means the creak is somewhere else (chainring bolts, pedal cleats, seatpost binder; see the pillar article); a worn shell or a contaminated press-fit interface explains the creak without the bearing being the cause.

For the full BB-area noise diagnostic order: Creaky bottom bracket? Check these first →.

FAQ

How do I remove BB30 or PF30 bearings without damaging the frame? Use a puller that works through the bearing's inner race rather than knocking the bearing out through the shell. Wind the 1625/2's expanding tip into the inner race, tighten the body until the tip grips, then draw the bearing free along the axis of the shell; the second bearing comes out the same way from the other side.

Will the 1625/2 also pull SRAM DUB bearings? Yes. The expanding tip is sized for BB30, PF30, and PF30A bearings in a 42 mm shell and also fits the inner race of SRAM DUB bearings, so one tool covers both press-fit families without extra adapters.

Can I use this puller on threaded bottom brackets like BSA or T47? No. The 1625/2 only extracts press-fit bearings. Threaded cups, including BSA, threaded BSA30, T47, and Italian, unscrew with the matching notched socket or wrench instead of being pulled.

Why not just knock press-fit bearings out with a hammer and punch? Percussion from the opposite side of the shell adds side load during extraction and can score the shell bore, and a scored bore is a hidden cause of creaks that return after the new bearing goes in. Drawing the bearing out under controlled tension avoids both, which matters most on carbon shells and close-tolerance aluminum shells.