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1982 GL500
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Discussion Starter · #1 ·
My bike squeaks quite badly, and I’m fairly certain it’s the rear monoshock. I’ve seen on this forum and blog sites that an R1 shock would be a capable replacement. However, I’m not entirely clear on a few things.

How easy is it to swap a monoshock in your garage?

Would an R1 shock interfere with anything?

Is there a better shock for the job out there? (One that doesn’t cost $400 :p) I would rather not replace it with another GL500 shock, something new... ish.


Any pointers or experience would be much appreciated. Thanks!
 

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The squeal is more likely from the shock linkage than from the shock itself. See the factory service manual for details.
 

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Yes the squeal is most likely from the linkage. On my 650 the collars (steel tubes the linkage pivot on) were all heavily rusted, I had to machine new ones. With new collars and everything properly lubed the suspension moves freely.
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I also wanted to upgrade the ancient air shock to something more modern. I was able to fit a CBR929RR shock while keeping the air box and battery in place. By trimming a little bit from the upper shock mounting bracket, making an adapter bracket and slightly reshaping the coolant bottle to clear the shock gas reservoir I got it to fit. Also had to use a GL500 shock link that fits with the CBR lower shock eye instead of the GL650 link that fits clevis style shocks. A shock with no gas bottle would have been easier to fit but I had no budget for a 400$ Hagon or YSS shock.
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short term fix is to liberally drown the linkages in Inox or similar. Squirted in with the applicator straw , reapply often over several days . Place a cloth on the floor to catch drips , and dont squirt the tyre.....
 
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short term fix is to liberally drown the linkages in Inox or similar. Squirted in with the applicator straw , reapply often over several days . Place a cloth on the floor to catch drips , and dont squirt the tyre.....
Off topic...but also works for those "sealed" ratchets where u cant disassemble and grease....
 

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'84 CX650E that is evolving into a GL500
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I figured out a way to eliminate the need for taking it apart to re-lube:
 
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