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Thread: 90 R 100 GSPD suspension upgrade

  1. #1
    not lost til out of gas 128521's Avatar
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    Question 90 R 100 GSPD suspension upgrade

    hello all, I would like to upgrade my suspension, I am thinking Ohlins on the rear, ( the basic one that you have to adjust with a spanner) and I am not sure about the front. I am setting the bike up to ride backcountry discovery route type stuff. what do you think? Chuck
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  2. #2
    '92 R100GS '81 R100/t brittrunyon's Avatar
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    I added a Wilbers shock (adjust with spanner) from Ted Porter.
    Rebuilt front end with Race Tech Gold Valves and new springs (local friend/BMW mechanic did the work).

    & it made the world of difference. You will be glad you upgraded!
    Go for it!
    zed photo _DSC3150_zps3b43ea02.jpg
    1992 R100 GS, 1981 R100/t, 2007 F 650 GS

    No Rules Photography at http://brittrunyon.com/
    My riding videos @ http://vimeo.com/user2721333/videos

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    Quote Originally Posted by brittrunyon View Post
    I added a Wilbers shock (adjust with spanner) from Ted Porter.
    Rebuilt front end with Race Tech Gold Valves and new springs (local friend/BMW mechanic did the work).

    & it made the world of difference. You will be glad you upgraded!
    Go for it!
    zed photo _DSC3150_zps3b43ea02.jpg
    Good idea about the race tech on the front, Forgot I had that on my list to do. I put an ohlins With the adjustment knob... MaxBMW had them on for a decent but expense price several years ago. I like it, works well.
    R's Graham
    1991 R100 GS "Bumble Bee" , 1981 R80G/S (work in progress)
    2010 Husaberg FE450
    Past BMWs: '68 R50/2, '77 R80/7, '87 R80GSPD, '76 R60/6, '85 K100RS

  4. #4
    not lost til out of gas 128521's Avatar
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    thanks, yesterday I ordered the basic Ohlins shock, and a Racetech emulator kit, new Racetech springs rated to my weight, and all the seals to do the job. the shop wants $300 if I bring them the bike or $150 if I remove the forks. I am wondering how critical the set up on the forks is. I would like to do my own work but I would be learning as I haven't done this job before.any thoughts? thanks Chuck

  5. #5
    not lost til out of gas 128521's Avatar
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    morning all, since there seems to be a lack of opinion on the fork rebuild I shall press on, what could go wrong?

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    Have you seen this for the race tech update?

    http://www.stephenbottcher.net/BMW/R...ld%20Valve.htm
    R's Graham
    1991 R100 GS "Bumble Bee" , 1981 R80G/S (work in progress)
    2010 Husaberg FE450
    Past BMWs: '68 R50/2, '77 R80/7, '87 R80GSPD, '76 R60/6, '85 K100RS

  7. #7
    '92 R100GS '81 R100/t brittrunyon's Avatar
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    Quote Originally Posted by grahamm View Post
    Have you seen this for the race tech update?

    http://www.stephenbottcher.net/BMW/R...ld%20Valve.htm
    That's the ticket!
    1992 R100 GS, 1981 R100/t, 2007 F 650 GS

    No Rules Photography at http://brittrunyon.com/
    My riding videos @ http://vimeo.com/user2721333/videos

  8. #8
    not lost til out of gas 128521's Avatar
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    thanks Grahamm, I did find that in my internet search, I have also been looking at Infra's 1993 R 100 GS maintenance and improvement on adv. Infra says when you drill the two holes in the damper rod (?) the bottom one is covered by a bushing, he says he just left the bushing out. I haven't taken mine apart yet but the Clymer manual says my fork has that bushing. any thoughts? thanks Chuck

  9. #9
    '92 R100GS '81 R100/t brittrunyon's Avatar
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    Quote Originally Posted by 128521 View Post
    thanks Grahamm, I did find that in my internet search, I have also been looking at Infra's 1993 R 100 GS maintenance and improvement on adv. Infra says when you drill the two holes in the damper rod (?) the bottom one is covered by a bushing, he says he just left the bushing out. I haven't taken mine apart yet but the Clymer manual says my fork has that bushing. any thoughts? thanks Chuck
    Sorry, can't help you with that one, since I sourced mine out & had a friend (http://www.ocdcustomcycles.com/home.html) install........Good Luck.
    1992 R100 GS, 1981 R100/t, 2007 F 650 GS

    No Rules Photography at http://brittrunyon.com/
    My riding videos @ http://vimeo.com/user2721333/videos

  10. #10
    not lost til out of gas 128521's Avatar
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    thanks, I will ask the shop when my parts come in later this week. maybe by then someone will see this and have experience with this issue, and let me know. on further investigation I found another guy on adv " forkin' around" who said he drilled his holes above the existing hole, that seems to make sense maybe it will be more clear when I take them apart.
    Last edited by 128521; 02-24-2013 at 05:08 PM.

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    Sorry no experience yet. This thread reminded me that I still have this upgrade to do. Was planning on this after I checked my tranny... Which to my surprise had the circlip and square edge NTN bearing which is a real surprise for a '91.
    R's Graham
    1991 R100 GS "Bumble Bee" , 1981 R80G/S (work in progress)
    2010 Husaberg FE450
    Past BMWs: '68 R50/2, '77 R80/7, '87 R80GSPD, '76 R60/6, '85 K100RS

  12. #12
    not lost til out of gas 128521's Avatar
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    thanks, I don't know anything about my tranny yet, other than you have to match the rpms perfectly or it won't like going into second gear, and my rear seal leaks thanks to following bad advice( " you have to use synthetic oil your tranny will run cooler and shift better", well maybe but it also started leaking) anyway I should have parts in a couple of days, I will post a few pics when I take it apart.

  13. #13
    not lost til out of gas 128521's Avatar
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    good morning, today I got my parts, my shop ordered Race Tech emul. kit, R 100 gs, pn FEGV S3804. this kit has an emulator for both sides, everything I have read on line says you should only put an emulator in the right side, since the left side already handles compression. my shop owner says I should put one in both sides, when I read the Race Tech info they said use both, because the Race tech valve works better and sooner than the existing unit. this makes sense to me and I am going with it. I will start tomorrow and post a few pics as I go. any thoughts?
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    '92 R100GS '81 R100/t brittrunyon's Avatar
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    1992 R100 GS, 1981 R100/t, 2007 F 650 GS

    No Rules Photography at http://brittrunyon.com/
    My riding videos @ http://vimeo.com/user2721333/videos

  15. #15
    not lost til out of gas 128521's Avatar
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    Smile

    yes , thank you for sending it. BTW nice bike, I think that guy is wrong! the best explanation I have found is " www.largiader.com" however he refers you to the website you just sent me which according to the info that came from Race Tech is wrong! Race tech says to drill the new holes above the existing hole, also he says use only 1 gold valve on the rebound side ( right) since the left already handles compression. my shop owner/ace mechanic, and Race Tech say put a gold valve in both sides , because the gold valve does a better job than stock alone. this makes good sense to me, and is what I am doing. I would love to hear from some one that has done this job. that's all for now, tomorrow I start disassembly.

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