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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