K2 / Proflex Riders Group
General => Tech Forum => Topic started by: jazclrint on April 19, 2008, 06:57:01 pm
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What is the ULM and pivot axels made of, and what is the coating on them?
Ok, so my Mech eng. buddy from school came over today to check out the slop that had developed in my adapter for my Fox Float RL that sits in my Crosslink fork. I also talked about simplifying the design. I am thinking that it is much more reliable and easier to make a new ULM, but with the upper shock pivot moved to the proper location for the Fox Shocks. In my current design you have to mil the ULM any way to make room for the air valve and a countersink for a bolt. Plus do a bunch of fiddely things with washers and such, and lining up threads. There also seems to be reliability issues in that slop seems to develop faster in my current design then I would like. I was told the biggest issue is that I used alluminium and not steel. But trust me, and new ULM would be much easier maintainance wise, although I am told it would cost more. But a kit for the fork would go from: 5 bolts, 3 nylon spacers, 2 brass bushing/spacers, 2 triangelish shaped parts, and a modded ULM; to a new ULM, 1 brass bushing/spacer, and one nylon spacer. Either way, I could use one of these Gonzo valves. http://www.pushindustries.com/products.php?prod_page=Components&title=Components
That's all I have for now, thanks.
Rich
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That would be aluminum. The upper mounts are anodized, the pivots are alum with some hoyty coating.
Terry
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the pivots are alum with some hoyty coating.
Terry
"hoyty"? Is that a technical term? Is there any way to replicate it on a small scale? I can't find an old crosslink to rob parts from, I don't think anyone has these things in stock any more (I know Iron Horse doesn't). I own a forum member here one because mine fell off. I could have one made up, but one silver one would look pretty stupid. And does anyone know what type of alluminium?
Thanks,
Rich
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i am pretty sure the axles are steel....yu could powder coat the ULM or even paint it....
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i am pretty sure the axles are steel....yu could powder coat the ULM or even paint it....
My vector axles are steel tube, but the my crosslink axles are alum. The best alum would be 7075 alloy, if you can find it in your area. If you have a blank size, I can look for you.
Hoyty-toyty = fancy-shmancy (pardon my linguistics :P)
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Thanks for the help. I just wish I knew what that coating on the axels were.
Here's a new subject on the crosslinks. Is there any real advantage of replacing the plastic bearings in the fork pivots iwth needle bearings? Would it be as big a difference as the sealed bearing make in the swingarm?
Opinons, ideas, rants?
Thanks,
Rich
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Thanks for the help. I just wish I knew what that coating on the axels were.
Here's a new subject on the crosslinks. Is there any real advantage of replacing the plastic bearings in the fork pivots iwth needle bearings? Would it be as big a difference as the sealed bearing make in the swingarm?
Opinons, ideas, rants?
Thanks,
Rich
I never had a problem with stiction with my vectors or crosslinks. The plastic seemed to be fine. With the shock out, it moved very freely.
The coating is some kind of hard anodize on aluminum.
Terry
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only the early vecrors suffered from stiction with the black seals,the "extreme seals fixed that,before i found out about the extreme seals i would pull the vector aprt and grease it up every month!
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is the polycarbonate coating is scratch proof ?