20
Rear Hub Bearing Installation
R e a r H u b B e a r i n g I n s t a l l a t i o n
NOTICE
To prevent damage when pressing the bearings into the rear hub, make sure that the bearing press tool contacts both the inner and outer races of
the bearing.
Install a new Zipp 6903/61903 hub bearing into the drive side of the
hub with the black seal facing outward.
Install a 6903 30x17 tool into the drive-side bearing bore.
Insert the threaded rod through the drive side of the hub shell. Slide a
second 6903 30x17 tool onto the threaded rod.
Thread the Press Tool handle onto the threaded rod.
Turn the handle clockwise to press the bearing into the hub until it is
hand-tight.
Do not overtighten the bearing.
Remove the tools.
NOTICE
To prevent damage when pressing the bearing into the hub, make
sure that the bearing press tools contact both the inner and outer
bearing races or bearing bores and not the hub shell.
Install a new bearing onto the longer, non-drive side of the axle, with
the blue bearing seal facing away from the raised step on the axle.
Insert the non-drive side of the axle into a Zipp 61903 tool, with the flat,
non-stepped end of the tool against the bearing.
1
2
6903 30x17
6903 30x17
3
Zipp 61903
