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I've bought a few Rockshox forks now and they all came with a huge amount of thick white grease in the air spring from new. Given that these forks rely on air moving through a tiny little dimple to equalize the positive and negative chambers, having all that grease just seems to be asking for trouble. Yesterday I pulled the new Pike apart, removed the grease and uses a "generous smear" of a thinner suspension grease (Stendec) instead and it feels so much better. But I'm assuming that Rockshox know what they are doing. So, do I really need all that thick grease in there?
To make up for the lack of grease in the past !!
So, do I really need all that thick grease in there
Yes - in order to create an air seal you need grease - or some sort of lubrication
Rockshox use a very thin grease
Fox use a very thick oil
where does one become the other?
It needs to be thin enough to cause minimal friction and thick enough to stay put
As for blocking the dimple...think of the pressure difference between the two chambers after you inflate the shock (60 PSI creates quite a force). Now imagine you are a lump of very thin grease...do you think you could hold back this pressure?
To make up for the lack of grease in the past !!
Ah, right, so it will all even out in the end. I just need to work out who to send my spare grease too !