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1Back to top Go down   rear shock advice Empty rear shock advice Wed Aug 29, 2012 6:44 pm

ali2908

ali2908
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After riding the bike for a few weeks now I have noticed that the rubber at the bottom of the rear shock inside the spring has perished and broken apart. Does any one know if this shock rebuild kit on ebay is suitable for the stock shock absorber 1985 K100 RS?

http://www.ebay.co.uk/itm/Marzocchi-Shock-Rebuild-kit-for-BMW-K100-part-number-850115-/280902630611?pt=UK_Motorcycle_Parts&hash=item416719fcd3#ht_500wt_1288



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Regards

Ali
1985 K100RS
2002 K1200 RS
    

2Back to top Go down   rear shock advice Empty Re: rear shock advice Wed Aug 29, 2012 7:43 pm

Rjtrucker

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The original shock from a k100 is not rebuildable. The rubber bumper on the bottom can be replaced but you will need a way to compress the spring.


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Ron S
NJ USA
74 R90/6 cafe project
93 K11LT
85 K100RS
85 K100RS turbo project.
And a load of K100 projects and parts.
    

3Back to top Go down   rear shock advice Empty Re: rear shock advice Wed Aug 29, 2012 7:46 pm

Inge K.

Inge K.
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I think it`s the rubber in the mounting eye he have in mind.


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Inge K.
K100RS -86. (first owner), K1100LTSE -94.
    

4Back to top Go down   rear shock advice Empty Re: rear shock advice Wed Aug 29, 2012 8:13 pm

Rjtrucker

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He did say inside the spring.


__________________________________________________
Ron S
NJ USA
74 R90/6 cafe project
93 K11LT
85 K100RS
85 K100RS turbo project.
And a load of K100 projects and parts.
    

5Back to top Go down   rear shock advice Empty Re: rear shock advice Wed Aug 29, 2012 8:19 pm

Inge K.

Inge K.
VIP
VIP
Sorry, time to visit my optometrist.......again.


__________________________________________________
Inge K.
K100RS -86. (first owner), K1100LTSE -94.
    

6Back to top Go down   rear shock advice Empty Re: rear shock advice Thu Aug 30, 2012 3:51 am

nino

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Ali, shock is rebuildable if you find some specialist in neighborhood. I have two workshops in circle of 50 km from Zagreb which do that job for 50 euros, so I believe in UK is easier to find than here. Rubber damper inside spring prevents damage when spring compress to the end (metal to metal contact).

On motorworks you can find original bilstein absorber (just inner telescope) for cca 100 pounds.

Regards

    

7Back to top Go down   rear shock advice Empty Re: rear shock advice Thu Aug 30, 2012 3:58 am

RicK G

RicK G
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@ali2908 wrote:After riding the bike for a few weeks now I have noticed that the rubber at the bottom of the rear shock inside the spring has perished and broken apart. Does any one know if this shock rebuild kit on ebay is suitable for the stock shock absorber 1985 K100 RS?

http://www.ebay.co.uk/itm/Marzocchi-Shock-Rebuild-kit-for-BMW-K100-part-number-850115-/280902630611?pt=UK_Motorcycle_Parts&hash=item416719fcd3#ht_500wt_1288


Rebuilding a K100 shock is a job for an expert. It needs to be opened using a lathe and then rewelded after the repair and they usually dont last.
The RAM SHOX are the best value you will get http://www.realmengineering.com/page15.html


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

8Back to top Go down   rear shock advice Empty Re: rear shock advice Thu Aug 30, 2012 4:09 am

ali2908

ali2908
Silver member
Silver member
Thanks again for the advice I will look at the Motorworks option as I have spring compressors. Would the broken rubber give handling problems?

Ali


__________________________________________________
Regards

Ali
1985 K100RS
2002 K1200 RS
    

9Back to top Go down   rear shock advice Empty Re: rear shock advice Thu Aug 30, 2012 4:11 am

RicK G

RicK G
admin
admin
Probably not but if you hit a real bad bump and bottom the shock it could break around the seal or just blow the seal out.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki
    

10Back to top Go down   rear shock advice Empty Re: rear shock advice Thu Aug 30, 2012 4:27 am

nino

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Life time member
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Ali, to avoid damage, you can mount peace of rubber inside spring. Find rubber tube 30 mm in length, cut it longitudinally and try to push between spring, around the absorber shaft. Thats exactly what I did, before rebuilding shock.

Regards

    

11Back to top Go down   rear shock advice Empty Re: rear shock advice Thu Aug 30, 2012 5:33 am

dalderton

dalderton
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I have a RAM shock as mentioned above and am very happy with it.I did contact a chap in Penrith who would rebuild my standard one in the original case for anyone who wanted it to look original but it was more expensive than importing the Ram Shock from U.K
Regards Dennis.


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1985 K75c Stock other than Realm Engineering Rear Shock.
    

12Back to top Go down   rear shock advice Empty Re: rear shock advice Tue Sep 04, 2012 1:58 pm

mikidymac

mikidymac
active member
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If you are refering to the rubber bottoming cone that is on the shock shaft, I had the same problem on my Polaris SXS. If you can remove the spring you can heat the eye that connects to the shock shaft enough to loosen the thread lock and it should unscrew easily but do not burn the rubber eye bushing then the rubber cone will slide off. I found replacement ones from Energy Suspension. Make sure to use red threadlock when you reinstall the eye. This is assuming that the eye threads on the shaft and is not welded.

    

13Back to top Go down   rear shock advice Empty Re: rear shock advice Tue Sep 04, 2012 4:23 pm

ali2908

ali2908
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Silver member
I have ordered a new Hagon shock which should arrive tomorrow, so hopefully back on the road tomorrow night.

Thanks again for the helpful advice.

Ali


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Regards

Ali
1985 K100RS
2002 K1200 RS
    

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