Apparently Marzocchi used to do a 'factory tune' service or similar, and one of the things they did was put some kind of PTFE additive in the fork oil. In the past I cut my fork oil with a bit of general purpose ptfe enriched lube, but I've noticed that if I don't do this the fork is a little more slippery.
So I did some research on additives. I wanted some kind of PTFE, but I only found PFTE dust available from the US. I've got Moly gearbox additive, and I'm going to try it this weekend and let you know.
That may not be a good idea; most forks that I've serviced say not to use molybdenum grease. I think that it is bad for the (DU?) bushing material or something. So a moly additive may not be a good idea.
Most custom shizzle they add to stuff like forks is a one show thing. Forks will be stripped and rebuilt each race so they may add things that are not that great for longer term use in terms of seals etc.
Have a look at this
http://m.pinkbike.com/news/race-prepping-a-fox-40.html
Everything is standard off the shelf in there, opening up the bushings etc is one of this fast bed in tricks really like them spinning the santa Cruz hubs and bbs on a drill
PTFE isn't great to be putting in your forks unless you know exactly what it is, as according to someone who knows far more about me when it comes to suspension forks, it can react with the the coating on the fork bushes, leading to sticking & premature failure.
(I had a similar conversation with him last week when I asked about silicon based fork lube's)
So PTFE is more slippery that oil is it ?
What makes you think that Fox, SRAM and Motorex aren't mixing sufficient additives with their fork oils ?
In the past I cut my fork oil with a bit of general purpose ptfe enriched lube, but I've noticed that if I don't do this the fork is a little more slippery.
Presumably you meant 'a little [i]less[/i] slippery', or am I misunderstanding your question ?
Don't forget you can also use a 'grease' type lube such as Slick Honey on seals/bushings.
Sorry yes, less slippery.
Interesting point about the moly additive, thanks. Have not yet added it.
[quote=mikewsmith ]Have a look at this
http://m.pinkbike.com/news/race-prepping-a-fox-40.html
Everything is standard off the shelf in there, opening up the bushings etc is one of this fast bed in tricks really like them spinning the santa Cruz hubs and bbs on a drill
[b]With the stanchion carefully set aside[/b], Kolja does one of the things that he says makes the biggest difference to the feel of the fork—he works the bushings.
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Aye tossed in the bin 😆
Unless you stabilise the PTFE with the correct surfactant it will clump. At best it would then just sit at the bottom of the fork and do nothing.
Im sure you know better than the people who make the fork
There's no free lunch here.
Lower viscosity oil is more free running, but doesn't cling as well.
Same goes for grease, better film pressure equals more drag.
Tighter seals keep out crap but increase stiction.
and all those spray shit lubes you can get end up dragging crap past the seals.
There's no free lunch here.
Rockshox seem to manage it quite well. Never had a stiction problem with their forks.
Mike's link makes a lot of sense. Maybe I just have tight bushings. Only answer is to ride the thing a lot.
Im sure you know better than the people who make the fork
Of course not. Every manufactured item is perfect for everyone out of the box. You'd better tell TFTuned to pack up and go home 🙂