Gary Fisher Cronos 用户手册

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GARY FISHER SERVICE INFORMATION

crank is rubbing or there is excessive drag

If you notice that the crank arms rotate poorly, there are several possible issues.

+

   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. 

+

    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. 

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   Enduro bearing: 0.75mm inside the shell.   

+

    GXP non-drive bearing: 0.25mm outside 

the shell

GXP triple crankset can’t be  
properly preloaded

Although some cranksets change the arm configuration 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..

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).

figure 55. sram bearing set

seal

Bearing

Wave washer

figure 54. sram bearing set

metal seal

spacer