Fork lower question...
 

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[Closed] Fork lower questions??

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Hi lads when you remove your lowers and put them back on do you compress them fully and tighten the foot nuts to effectively form negative pressure in the lowers?
I have never done this but some YouTube videos show this. I've been having a debate with my mate and I said it is wrong he says that it's right.
I've never had a problem with leaving them extended.
Who's correct? 🙂


 
Posted : 25/12/2018 9:02 pm
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No. Forks either have a valve for manually adding negative pressure or they self balance between the positive and negative chambers.


 
Posted : 25/12/2018 9:42 pm
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Hi mate thanks for reply but I don’t mean in the air shaft. I mean the lowers of the fork where the stanchions go in. The dust seals do a good job of sealing the lowers so air either gets trapped in or a vacuum.


 
Posted : 25/12/2018 10:00 pm
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Your right.you want to extend the forks


 
Posted : 25/12/2018 10:08 pm
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Extended, if you re-assemble whilst compressed and then inflate you create a vacuum in the lowers, not what you want (acts like a secondary negative).


 
Posted : 26/12/2018 2:12 pm
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Hey Dazzzzbo. About a year ago I was wondering the same thing. I’d seen the you tube vids that showed the lowers comressed, so it created more negative pressure (or something like that). I tried it and it didnt work wel. exactly as dirty dog says above.

When watching the proper SRAM , xfusion and fox “how to” videos, they always do it uncompressed. I get the concept of doing it compressed, but it’s not how the manufacturers rcomdn(and they should know).


 
Posted : 26/12/2018 2:18 pm

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