RaceTech Valve on a G/S - Let's talk to Racetech

Discussion in 'Old's Cool' started by StephenB, Jan 19, 2007.

  1. StephenB

    StephenB G(/)S ... what else!

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    Does anyone with a G/S live local to Racetech and can go and ask a question: since TomMcBride had his G/S forks done years ago, there must be a way. He never said how much it was but it wouldn't hurt to ask.
    Maybe we can go as far as using some marketing intelligence to have them manufacture a larger qty for the G/S's? I am sure if they manufacture say 50-100 sets they would be "gone in 60 sec"! The cost to design can't be that high, it would probably be a modification of the FEGV S3802. I think it is worth to ask. They may be listening just now? Racetech, are you there?

    I want a better front fork action for far less than half the price of a used GS front end!

    Any thoughts on that idea?

    Stephen
    #1
  2. Mendodave

    Mendodave Road Scholar

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    +1

    I am up for it.
    #2
  3. Cordless

    Cordless Two Wheel Addict

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    Me too!
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  4. elmoreman

    elmoreman takin' a break, boss

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    :evil gimme gimme gimme
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  5. datchew

    datchew Don't buy from Brad

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    Count me in.
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  6. wintonio

    wintonio last of the Dum Dum Daze

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    I don't know anything about any of this, but I do know that the shop at which I just got my wheel fixed is an authorized race tech dealer. Oh yah, they are also honest, knowledgable, and pretty close to being perfectionists. They might be able to help if you want me to talk to them.

    Winston
    #6
  7. woodgrain

    woodgrain In-Dented Savant

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    I'd be up for a set for my '83 G/S.

    Woodgrain
    #7
  8. atgreg

    atgreg Africatwinarama Super Moderator

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    Guys,

    here in Oz there's plenty of 80 and 100gs's fitted with racetech cartridge emulators, there's no problem getting the right size. The only drama is the later bikes with compression damping on one side only, the emulators are only sold in pairs so you have to buy 2 or find another guy who wants one as well.

    I have the emulators in my 750 Africa twin, what a difference !!!, many of my friends on various types of bikes with damper rod forks have had them fitted and all are impressed with the improvement to the action of the forks
    #8
  9. StephenB

    StephenB G(/)S ... what else!

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    Wintonio, can't hurt to ask. Although I think we need to talk to the manufacturer directly. RaceTech is probably not even aware of the business opportunity here! Can you explain the problem to them and that we need say 25 sets (for 50 G/Ss) for a start, maybe they are interested to help the G/S community out. I volounteer to send a forkleg in for trials/installation.

    atgreg: we are talking 1980-1987 G Slash S here, not the 88-95 GS (mind the SLASH!).

    Stephen
    #9
  10. Wirespokes

    Wirespokes Beemerholics Anonymous

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    I believe the G/S takes two emulators, unlike the GS. I think it's only those weird R100GSs that divide the compression and rebound damping between the two forks.
    #10
  11. StephenB

    StephenB G(/)S ... what else!

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    Trvla, you're right.

    I have gone further with an open letter to RaceTech in the Vendor forum http://www.advrider.com/forums/showthread.php?t=197887
    and an email with the same Open Letter to their Sales Team. I want it clarified for once and for all whether they want that business or whether I have to buy a 40mm setup if I want something improved. It is never going to be a 43mm Marzocchi Extreme, but I personally don't need (can't afford) that.

    Let's see what happens.

    Any other suggestions?

    Stephen
    #11
  12. jtwind

    jtwind Wisconsin Airhead

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    I'd be interested also. I've emailed race tech a few times and they never get back to you. I'd just gotten in touch with Mr Mcbride as to his g/s. Informed me they were PN# FEGV S3801. JT
    #12
  13. ROSKO

    ROSKO The Dirty Knacker

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    Most of the owners I have queried say they just called Race-Tech. They may just be one of those companies that doesn't repond well to internet communication.

    If we do get a final answer I propose this info go up on the 'airheads tips & tricks' thread. list #'s for the (single) r100 and r80.

    Also, there have got to be a few more people who have done the mod here on ADV, I know of 1, will send a PM.
    #13
  14. wintonio

    wintonio last of the Dum Dum Daze

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    well, I guess if yall want me to talk to the race tech dealer, just PM me, let me know. Also, if anyone wants to split a set for a GS, let me know.
    #14
  15. atgreg

    atgreg Africatwinarama Super Moderator

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    many old r80GS's have em fitted here, you just need to get the right size for the fork diameter and that fits the top of the damper rod, there's no specific fitments as such. Any suspension tuner should be able to supply the right ones and give a recomended setup on the valve spring preload. it's really not that hard
    #15
  16. StephenB

    StephenB G(/)S ... what else!

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    Wintonio,

    Why don't you do that, talk to the dealer. I'll talk to Racetech directly and see what they say.

    atgreg: the setup for the earlier G/S forks is quite different. Whereas the later GS damping rod is hollow and allows oilflow through the center (thus a valve type design to improve), the G/S ones are solid if I remeber correctly, so the normal Racetech GoldValve setup would not work. This is stated from memory as of last winter, I haven't started work on my front end yet.

    Anybody else any ideas or contacts?
    #16
  17. wintonio

    wintonio last of the Dum Dum Daze

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    Guys- I will get in contact with the dealer asap for yall. I will find out what needs to be done, or what will be needed to figure out a solution. Please let me know any pertinent information, as my mechanical jargon/vocabulary is highly lacking, and I don't have the technical savvy to make myself not look like an imbecile while trying to explain something that eludes the understanding of my feeble brain.
    #17
  18. independent

    independent Adventurer

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    Hello, guys. Maybe I can help you with Emulators for your GS's & G/S's.
    I'm the guy that worked at Cal BMW from 95-00, and did the suspension modifications for many customers bikes. I've recently left the BMW dealership scene, and struck out on my own, doing freelance work out of my home workshop, with an eye towards opening a real shop here in the Reno, NV area.
    I recently attended the Racetech Seminars again, to update my knowledge base. It's been nearly ten years since I began working on suspension, already!
    What is it you're looking for from Racetech, specifically? Do you just need to buy the parts so that you can install them yourself, or do you want to send your forks to someone and have them modified?
    I would be happy to provide the installation service for you, for a modest fee. $100 plus parts & shipping should cover my time spent. You could send me the complete fork for a thorough inspection (the teflon bushings usually show considerable wear by 15-20K), damper rod modification, and careful reassembly. Or if you're willing & able to perform the fork disassembly & reassembly yourself, I can do the damper rod drilling for you, which is the critical part of the job.
    I can also straighten slightly bent fork tubes in my hydraulic press, if needed.
    If there's enough interest among you, I'm willing to stock parts necessary to do the work with a quick turnaround time. I don't like to wait, either!

    cheers!

    kevin johnson
    #18
  19. jtwind

    jtwind Wisconsin Airhead

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    Kevin, I've seen articles online that deal with putting a racetech cartridge in a gs fork. But I've a g/s and have yet to see any info on doing these fork. I'd appreciate a basic rundown on what needs to be done. Then we can go from there.

    I talked to Kevin Caselli at Cal BMW a few years ago and you are probably the guy he told me he's put me in touch with, though he never did. JT
    #19
  20. independent

    independent Adventurer

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    hello, JT
    The Emulator installation process is pretty straightforward. The forks are removed from the bike, oil is drained and springs removed. The damper rod bolt is removed from the bottom of the slider tube, which frees both the slider and the internal damper rod. The damper rod is removed, and extra holes are drilled into it. The fork is then reassembled, with the emulator sitting on top of the damper rod piston. The spring sits on top of the emulator, holding it in place.
    Naturally, the fork gets a thorough cleaning & inspection for wear.
    If you choose to re-use the original springs, the spacers get shortened by the height of the emulator valve. If you're installing new springs (I've had very good results with Racetech straight-rate springs.), then spacers will be cut to length for the new springs.
    The R80 G/S uses a different fork than the R100GS, and uses an emulator valve on both sides, where the R100GS uses an emulator only on the right side. The valve itself is a different part number, due to the different internal diameter of the fork tubes & damper pistons.
    Other than the single valve/two valve situation, the basic process for installation is the same for both bikes, and the improved performance is equally noticeable!
    Does this help your understanding? I've left out details for clarity, but hopefully this helps.

    cheers
    kevin
    #20