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hfxrzw Mad Brick Rider

Joined: 30 Jan 2009 Posts: 78
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Posted: Tue Nov 24, 2009 3:23 pm Post subject: Using another shock on your bike??? |
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How easy is it to fit another shock? Is it sufficient to make sure the overal sizes are the same or is there more to it? This probably sounds a bit dum, but just wondering what's important. Could you for instance fit a shock for a R1150RT into a K100RT, as the sizes seem the same. Thanks. _________________ Cheers, Rene
Greetings from Florida.
BMW K100 '85 |
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Mudbug

Joined: 15 Jun 2007 Posts: 13
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Posted: Thu Nov 26, 2009 8:05 pm Post subject: |
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The length is important for fit. I replaced mine with a Wilbers. They sent me the wrong size the first time. It was for a different year than my 1991 K100RS. Once the right size arrived and installed, all was good. Then I rebuilt the front forks, seals, fluid, etc. Now the bike handles much better. _________________ ====================================
Robert Odendahl
Austin, TX |
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Scott_Anderson Site Admin
Joined: 05 Sep 2006 Posts: 3122 Location: Central Iowa, USA
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Posted: Thu Nov 26, 2009 8:54 pm Post subject: |
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You can fit other non bmw shocks. Just make sure that what ever you get is designed to fit your year/model of bike, as skdonlan can vouch for.
There are very few "universal" shocks. _________________ Ride safe.
1995 K1100LT 0302044
2017 FLHTK Ultra Limited
Garmin StreetPilot 2820
Garmin Zumo 550
Garmin Zumo XT
"One who does not ask questions is ashamed to learn" Danish proverb
1997 K1100LT 0302488(R.I.P.)
1997 R1100RT ZC62149(sold) |
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hfxrzw Mad Brick Rider

Joined: 30 Jan 2009 Posts: 78
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Posted: Fri Nov 27, 2009 5:00 am Post subject: |
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OK, than I better put up that new R1150RT shock up for sale. Thanks. _________________ Cheers, Rene
Greetings from Florida.
BMW K100 '85 |
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Scott_Anderson Site Admin
Joined: 05 Sep 2006 Posts: 3122 Location: Central Iowa, USA
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Posted: Fri Nov 27, 2009 8:38 am Post subject: |
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| hfxrzw wrote: | | OK, than I better put up that new R1150RT shock up for sale. Thanks. |
Just a quick look at Max's, I'd say that no they will not interchange. But that's just looking by part #. They don't give any dimensions on them.
If you already have it, what can it hurt to try to fit it.
Look at all your clearances around it as you are fitting it.
As Mudbug mentioned, check your length, see if anything would hit on when the shock is compressed.
Have you got a spot to mount the hyd adjuster assy that would allow the shock to flex.
What is the load weight rating of the R'rt vs the K'rt, (will the shock have a heavier spring wt to it making the K ride stiffer)
Not saying that you absolutely cannot use it.
Just saying that these are all thing to be checking. _________________ Ride safe.
1995 K1100LT 0302044
2017 FLHTK Ultra Limited
Garmin StreetPilot 2820
Garmin Zumo 550
Garmin Zumo XT
"One who does not ask questions is ashamed to learn" Danish proverb
1997 K1100LT 0302488(R.I.P.)
1997 R1100RT ZC62149(sold) |
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Flying Duck PsyKotic Waterfowl

Joined: 27 Jan 2005 Posts: 10102 Location: Bumf***, WA
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Posted: Fri Nov 27, 2009 5:45 pm Post subject: |
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Why replace a crappy BMW shock with another crappy BMW shock? _________________ 93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE |
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Jim Site Admin

Joined: 17 May 2003 Posts: 3841 Location: WHERETHEFUNNEVERENDS
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Posted: Fri Nov 27, 2009 7:20 pm Post subject: |
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| Flying Duck wrote: | | Why replace a crappy BMW shock with another crappy BMW shock? |
Rene - the OEM shock isn't all that good - might last about 40,000 miles. If you're going to replace the shock, at least get one of the British ones - I think everyone is happy with them. _________________ Jim
1997 K1100LTSE 94,000 - still has gremlins!
1995 R100RT Classic 16,650 crashed - repaired!
1992 K75RTP 46,000
"We shall not all die, but we shall all be changed." |
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hfxrzw Mad Brick Rider

Joined: 30 Jan 2009 Posts: 78
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Posted: Sat Nov 28, 2009 5:59 am Post subject: |
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Thanks team, appreciate the info. I got a R1150RT spring quite cheap and even Beachcombers well received RAM shocks are more than twice the cost (by a margin). If I can get 40.000 out of it I'd be happy. I have a progressive on it now, but it seems for a lower weight than mine with bike.
Maybe should try to sell the R1150RT one and buy a K100 one. Hate to spent the money and I like to tinker a bit.........must be the heritage. Cheers, Rene. _________________ Cheers, Rene
Greetings from Florida.
BMW K100 '85 |
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Beachcomber Flying Brick Rider

Joined: 04 Nov 2008 Posts: 350 Location: Redditch UK and Reichenau [ Saxony ]
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Posted: Sat Nov 28, 2009 7:27 am Post subject: |
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I appreciate the sentiment Rene as my direct family heritage is Crawford !! [ self depracating Scottish mean-ass inference ].
Before you do anything potentially dangerous [ like fitting a non compliant shock ] - let me have a look at all the OEM shox I've replaced - if there's one good enough - I'LL GIVE IT TO YOU!
Not all were totally knackered - but were replaced with the you know what - well, because I could.
The bottom line Rene is that the shock is 50% of your contact with the road - don't compromise.
One point overlooked in the will it won't it saga - what is the pivot ratio that the shock is working at?
Am I correct in thinking the R1150RT shock mounts in the centre of the bike?
I know the Kay series mount on the driveshaft assembly.
Measure the distance [ relative to each bike ] from the pivot axis of the swingarm to the point where the shock mounts [ bottom ].
I am guessing that the Kay mount is waaaay back from the R1150.
That means the internal valving etc., is working under different external loads.
Realm have just started work on the RAM for R Oilhead series - and the internal requirements are completely different. I imagine this applies to OEM as well.
I agree with saving money in these hard times, but this is a safety issue - give it some serious thought before you commit.
ATB
TJ _________________ Beachcomber '93 K1100RS / '93 K1100LT and several K100's |
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Phil Marvin Rider in the Sky
Joined: 03 Apr 2003 Posts: 1389 Location: El Paso, Texas, USA
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Posted: Sat Nov 28, 2009 9:19 am Post subject: |
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Hi, Beachcomber,
Please PM me on RAM shocks. I am in the market for new shocks for a couple of my K75 bikes and would like to have RAM info - specs, prices, shipping costs, etc. _________________ Ride Safe,
Phil Marvin in El Paso, TX
'94 K75A/3
'95 K75RTP |
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Stoked Steve Flying Brick Rider

Joined: 01 Sep 2004 Posts: 1402 Location: Virginia Beach, VA
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Posted: Sat Nov 28, 2009 5:35 pm Post subject: |
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Very happy with my RAM. I took the wife out for a ride this weekend after finally getting her some proper gear. At first I left the shock setting the same as I ride it by myself. There was way too much bouncing up and down, stopped for gas and added 4 clicks on the knob, didn't touch the preload, it rode awesome with two on board, nice and tight, but not harsh. Later I just backed it off the 4 clicks and I'm good to go.
Best money I've spent on my bike. _________________ Steve
Virginia Beach, VA
93 K1100RS Mystic Red SOLD
12 Suzuki DL650A VStrom |
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BobZ(IL) Rider in the Sky

Joined: 20 May 2007 Posts: 651 Location: Bourbonnais, IL
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Posted: Sat Nov 28, 2009 6:32 pm Post subject: |
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I have always been pretty well able to determine the condition of shocks or struts on cages, but what are the symptoms or ride characteristics of a worn out rear m/c shock? _________________ '93 K1100LT
'78 R100S
'05 R1200GS
BMWMOA, CRBMWOA, ABC, K11OG #997
Live well, do good work, enjoy the ride. |
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hfxrzw Mad Brick Rider

Joined: 30 Jan 2009 Posts: 78
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Posted: Sun Nov 29, 2009 7:19 am Post subject: |
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TJ, that's a great offer (!) and I'd really, really like to take you up on it! PB sent. _________________ Cheers, Rene
Greetings from Florida.
BMW K100 '85 |
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hfxrzw Mad Brick Rider

Joined: 30 Jan 2009 Posts: 78
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Posted: Sat Dec 05, 2009 6:28 am Post subject: |
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TJ, still here?? _________________ Cheers, Rene
Greetings from Florida.
BMW K100 '85 |
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