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GARY FISHER SERVICE INFORMATION
If you notice that the crank arms rotate poorly, there are several possible issues.
Cause Solution
Out of spec or bent non-drive
metal seal
+ The inside chamfer of the metal seal
(Figure 54) rubs on the outer race
of the bearing.
+ The metal seal deforms under the
compressive load of the non-drive
arm and rubs on the outer race of
the bearing.
Install a new metal seal (same Part
Number: 282865). We have revised the
metal seal by adding a ring of material,
0.3mm thick, to the seal around the inner
diameter. This will move the outer edge
of the seal away from the bearing.
Bearing not seated properly
+ A tight bore can cause the installer
to think the bearing is seated when
it is not.
When properly installed the bearing will
not sit even with bottom bracket shell.
+ Enduro bearing: 0.75mm inside the shell.
+ GXP non-drive bearing: 0.25mm outside
the shell
Although some cranksets change the arm conguration to add clearance for a third
chainring, the GXP crankset uses a longer axle. Without additional spacers, a longer axle
will not compress the bearing..
Cause Solution
Different axle lengths require
different spacers
Triple GXP crank axles are 5mm longer
than doubles.
Install a 5mm thick spacer (Part Number
291276) between the wave washer and
the red bearing seal (Figure 55).