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Discussion Starter #1
I’m completely rebuilding my bike right now and one of the last things I have to do is rebuild the forks. I purchased racetech springs for my weight and racetech gold valves (compression.) my problem lies in the fact that I swapped forks like 10 years ago with forks that were supposedly from a 954. I did it because my steering stem was stripped and I got the triples, steering stem, forks ect as a package deal for much less than I could find just the steering stem for at the time. Now that I am upgrading and rebuilding everything after my bike has been sitting for 5 years I am beginning to question whether I have 954 forks at all. At the time I thought 954/929 forks were identical but now that I am more knowledgeable going through this whole experience I have learned that 929/954 forks have some different part numbers. Racetech offers rebound gold valves for the 929 forks but not the 954 so I am trying to figure out which I have. Any identifiers between the two would be greatly appreciated.
 

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Discussion Starter #3
I just need to know if there are any visual indicators that show the difference between the 2, I haven’t opened them up yet. Once I do I could post pictures of the internals but once I do I will post them. Are there any external differences?
 

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Discussion Starter #6
I read somewhere that the 929 has grooves in the preload adjustment and the 954 does not. My forks have the grooves despite the fact that they are supposed to be 954 forks. Can you confirm this?
 

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I appreciate the feedback immensely but these are the groves I am talking about
I can only assume mine are like that. I would prefer to not undo mine to find out. Hopefully someone who has disassembled can pitch in.:wink
 

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Asw far as I know the only differences between the 929 and 954 forks were minor internal valving changes. It would be worth emailing Racetech, they were helpful when I bought valves for my 929 forks and wasn't sure how best to valve them for my '98.
 

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They have not been being very helpful. Despite multiple times asking questions they have sent very brief replies with no useful information. It’s funny too because the entire reason I am trying to find out the difference is because I want to buy another product from them.
 

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Sometimes a vendor won’t have parts for a particular model because of lacking testing or R&D data on it. I encountered this on an expensive bling part where the manufacturer skipped my year and point blank told me they wouldn’t support me if I purchased anyway. Since you intend to disassemble the forks anyway you can have a look at the pistons. Sometimes there might be spacer dimensions that may change between models or other internal differences, but the functional structures and modes of operation are the same where it matters. It was all a matter of OEM development.
 

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They have not been being very helpful. Despite multiple times asking questions they have sent very brief replies with no useful information. It’s funny too because the entire reason I am trying to find out the difference is because I want to buy another product from them.
This is one of the reasons they offer build service. They figure most people don’t understand enough about how valving, etc works and they would spend too much time on phone support. Do you have a local suspension shop?

I bought a kit from GP Suspensions after hearing nothing but rave reviews. I wouldn’t have been able to detect their packaging error, except I had a professional suspension builder do mine.
 

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I appreciate the feedback immensely but these are the groves I am talking about
Isn't that just the preload adjuster backed out, and the lines are for reference? 954 should have the same part with the lines I would imagine. @nigelrb, you should be able to just back out your adjuster, no? Then put it back to where it was :idunno:
 

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Discussion Starter #15
Yes it’s just the preload adjuster, I read that 954’s do not have the lines and the 929 does. Not sure if it’s true.
 

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Discussion Starter #17
Well today was interesting, it took me 3 hours to get my first fork tube apart, I probably slammed it as hard as I could roughly 300 times before the fork seal popped out. The second one came apart in about 5 minutes. I think something was messed up with the bushing in the first one because it was becoming unaligned and I had to smack it straight every time I tried to yank it apart. The second one never did that and only took 4 or 5 good yanks. Now that I have them apart does anyone know how to identify the internal differences between the 954 and 929 forks 🤷‍♂️
 
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