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Park Tool Co.

5115 Hadley Ave. N., St. Paul, MN 55128 (USA)  www.parktool.com

BBT-90.3 

Press Fit Bottom 

Bracket Bearing Tool Set

The Park Tool BBT-90.3 Press Fit Bottom Bracket Bearing Tool Set is designed for installation and removal of the bearings and bear-

ing units used in BB90, BB92, Shimano

®

 press fit, SRAM

®

 press fit GXP, Race Face

®

 press fit and other press fit bottom bracket sys-

tems.  The BBT-90.3 includes a bearing removal tool and two bushing, which are used in conjunction with a Park Tool Bearing Cup 

Press (HHP-2 or HHP-3) to press the bearings into the bottom bracket shell.

BEARING REMOVAL:

1.  Insert and pull removal tool through bearing 

or bearing/sleeve unit until flared end of tool 

snaps behind bearing or sleeve.

2.  Strike tapered end cap with hammer to 

drive bearing or bearing/sleeve unit from 

frame.

3.  Repeat steps 1 and 2 on opposite side to re-

move second bearing or bearing/sleeve unit.

BEARING INSTALLATION:

1.  Assemble installation bushings, bottom 

bracket bearings, bottom bracket shell, and 

headset press as shown.  

2.  Turn handle of bearing cup press, making 

sure the bushings, bearings, and bottom 

bracket shell stay aligned.  Continue press-

ing until each bearing bottoms against the 

stop (a snap ring or machined stop) inside 

the bottom bracket shell.

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2

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