K11 Owners Group

Off the grid · Posted: Fri Jan 11, 2008 8:57 pm Post subject: Fork springs.

Looking for a new set.

Can anyone confirm if these definately fit my 93 K1100LT before I order them?

Anyone have experience with WP or recommend any different front springs for the LT?

WP Springs
Code 100
Year >92
Proline spring # 9932.0192.A

http://www.wpsuspension.com/service/Recommendationlist2006.pdf

Also found this Race Tech site.

They have springs for a 1997 LT. Are the forks the same for a 93?

Which Spring should I get out of this list for a rider that is 290?

FRSP S2938080 RT FRK SPR 29.0x377mm .80kg $109.99
FRSP S2938085 RT FRK SPR 29.0x377mm .85kg $109.99
FRSP S2938090 RT FRK SPR 29.0x377mm .90kg $109.99
FRSP S2938095 RT FRK SPR 29.0x377mm .95kg $109.99

http://www.racetech.com/evalving/SpringRateCalculation/dirtspring.asp?brand=BMW&yr=97&ml=K1100%20LT&formuse=form1&SpringType=Fork
_________________
Bane of your existence since July 2006
2007 Triumph Tiger ABS. "Sabertooth"
2009 Husqvarna TE610. "The dirty Italian mistress"

Flying Duck · Posted: Fri Jan 11, 2008 9:29 pm Post subject:

290 lbs. ? Shocked

Shit, just get a Harley. Razz

FYI: Ted's got a whole write-up on springs here:
http://www.k11og.org/tech/k11tech_springs_install.shtml
_________________
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

Off the grid · Posted: Fri Jan 11, 2008 9:33 pm Post subject:

Das Boot · Posted: Fri Jan 11, 2008 10:06 pm Post subject:

Grid,

The part number you have for the WP Springs is correct, if you can order them, they are the best. I could not find a place that sold them anywhere, I went as far as going to KTM, since they use WP to try to see if they had the same numbered springs in any of their bikes but they didn't.

The RaceTechs are a good second choice. The heaviest springs they suggest for our bikes is the .95k FRSP S293895, they are rated for a 170lb rider. For your added weight and riding 2 up, I would suggest the .95's with 15weight oil and the max preload that the instructions suggest when you assemble them. If you do a search on the site, you will find a problem that I came across, installing them. The springs inner diameter is slightly smaller then the stock springs. The lower part of the cartridge will have to be milled out a bit for them to seat nicely. Not really a big deal, if you were already planning on taking the fork legs off the bike. If you install the springs, be prepared to buy new upper and lower bushings, snap rings and seals. If you do all of that and put on a set of gaitors, you shouldn't have any problems with the forks, for a very long time Wink

_________________
Dom

Das Boot · Posted: Fri Jan 11, 2008 10:15 pm Post subject:

Grid,

I have put a ton of money in my bike over the years. By far, the best bang for the buck has been upgrading the forks. $109.00 for springs and around $160.00 for bushings, seals etc, has proved well worth the time and small investment of $$$$
_________________
Dom

Das Boot · Posted: Fri Jan 11, 2008 10:21 pm Post subject:

And since you will already be in there, try this: Wink

http://largiader.com/bearings/

This should keep you out of trouble for a while Laughing

_________________
Dom

Off the grid · Posted: Fri Jan 11, 2008 10:41 pm Post subject:

Dom,

Thanks a ton for the info.

Thing is, I just got the forks rebuilt like 5k miles ago.

Like completely torn apart, cleaned and put together.

Still have the stock springs though.

I am looking for a spring set that does not require that much labor, just kind of "drop in and go".

Thoughts?
_________________
Bane of your existence since July 2006
2007 Triumph Tiger ABS. "Sabertooth"
2009 Husqvarna TE610. "The dirty Italian mistress"

Das Boot · Posted: Fri Jan 11, 2008 11:25 pm Post subject:

I am looking for a spring set that does not require that much labor, just kind of "drop in and go".

Thoughts?
_________________
Lurker+cause of "The Dungeon"
Wedding: 25k
Divorce: 500$
1993 K1100LT+Brazilian 2nd wife: Priceless

The .90k RaceTech's can be dropped in according to RaceTech. The stock Marzocchi springs were rated at .46k, so even the .90k are a big improvement of what you have now. Go with 15w fork oil and cut the spacers for max preload, that RaceTech suggests. The result will still be a nice improvement.

BTW, Ted's instructions are top notch. Note that his instructions suggest 2 helpers, it's a bear of a job by yourself Idea

_________________
Dom

Das Boot · Posted: Fri Jan 11, 2008 11:39 pm Post subject:

Grid,

If you can order the White Power springs in Canada, they do not need spacers cut and all of the washers that the RaceTech's need. So installation is easier to do with the WP springs esp, for the drop in method Idea

As I mentioned earlier, I couldn't find them.

A key point is taking off the fork caps one at a time!!! Otherwise the forks will drop down and the bike will fall back, if on the center stand, or fall forward if on the side stand.
_________________
Dom

dave n · Posted: Fri Jan 11, 2008 11:57 pm Post subject: forking around

Put on c/stand - use small bottle jack & board under oil pan to keep weight off of front end before removing fork caps. Much eaiser than fighting springs.
_________________
Dave Norris KOG 248
1999 Cagiva Gran Canyon
1993 K1100LT w/Hannigan sidecar
2008 Suzuki DR650

owrstrich · Posted: Sat Jan 12, 2008 11:54 am Post subject:

i have a new set of works performance front springs for the 94k1100rs that are new and unused and even in the unopened box they were shipped in from the factory in conoga park california...

if you think they are the same as what you need... and if interested... i can get the part number for you for independent verification...

im sure something can be worked out... of course any arrangement will require you to wrap some fish heads in some new york times front pages and send them 5 day minimum shipping to my boss..

j o
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yeeeeeehaaaaaaa...

Flying Duck · Posted: Sat Jan 12, 2008 1:22 pm Post subject:

Off the grid · Posted: Sat Jan 12, 2008 1:36 pm Post subject:

Think that will be good for my fat ass Drake? Shocked

Will the WPs fit my LT without mods or intense labor to install?
_________________
Bane of your existence since July 2006
2007 Triumph Tiger ABS. "Sabertooth"
2009 Husqvarna TE610. "The dirty Italian mistress"

RAL88 · Posted: Sat Jan 12, 2008 2:17 pm Post subject:

In '05' I changed out the stock springs on my 96LT with work performance springs #FK3410. According to the application chart I have this works with the LT/RS with cartridges and ABS. If you have a Showa shock then it is a different set of springs. They cost me $120 shipped. These are dual rate springs and they come with 3 sets of precut load spacers and preload spacers. The springs outside diameter is larger than the stock so you have to leave off the sleeve that goes over the stock spring. These were pretty much plug and play and handling is much better than the stock.

Rich

I found this on the WP website. The price is up about $17 from when I ordered them.

_________________
Rich

"If it ain't broke, take it apart and make it work better"
*************
'96' K1100LT-SE
'97' R850GS-R

Flying Duck · Posted: Sat Jan 12, 2008 2:44 pm Post subject:

I don't think any of the K1100 models have Showa forks. The ETK only shows one set of forks for LTs and RSs. But the earlier Ks had different forks based on year.
_________________
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

Das Boot · Posted: Sun Jan 13, 2008 6:10 pm Post subject:

Flying Duck · Posted: Sun Jan 13, 2008 7:09 pm Post subject:

You're right - and it does show it in the ETK - not sure how I missed it before. It shows a used from 1/93 to a used up to 1/93 so there can't be many out there. Must have been leftovers from the K100RS4V and K1 production runs.

I think the diameters are the same as there's only one fork tree set for the K1, K100RS4V and K1100RS bikes.

I just swapped in some K100RS4V forks on my K1100RS and they fit in the trees perfectly.
_________________
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

Off the grid · Posted: Sun Jan 13, 2008 7:51 pm Post subject:

So again, giving that I have a history of buying the wrong part for my K, I would like some confirmation from the more experienced folks here before I actually purchase springs.

I am leaning towards the Race Techs.

Given that info, are these the ones I need to order for a 93 K1100LT?

FRSP S2938090 RT FRK SPR 29.0x377mm .90kg $109.99

Thanks in advance.
_________________
Bane of your existence since July 2006
2007 Triumph Tiger ABS. "Sabertooth"
2009 Husqvarna TE610. "The dirty Italian mistress"

Das Boot · Posted: Sun Jan 13, 2008 8:12 pm Post subject:

Jim · Posted: Sun Jan 13, 2008 8:48 pm Post subject: fork springs

Dave - if you want WP (they no longer use the White Power name Rolling Eyes

) springs, contact Dave Anderson at Anderwerks in Calgary, Alberta. He'll fix you up. There doesn't appear to be a US dealer. Dave is a totally cool (factory trained) guy with a totally cool shop! http://www.anderwerks.com/

Canada
Anderwerks Ltd.
Bay 4, 3704 - 6th Street NE
Calgary, Alberta
Tel: (403) 277-4269
Fax: (403) 277-4244
_________________
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."