K11 Owners Group

aoeu · Joined: 05 Dec 2013 Posts: 2

[quote="Beachcomber"]
I have K1200S wheels back and front now - or at least will when I get the spindle ! Rear is the 5.5" version with the disc attached to the bevel housing.[/quote]

Hey Beachbomber,

First post here. I joined up to clarify a few details as I'm planning on doing the same thing. You stated you fitted K1200S wheels on the back, but from my research this bike is a 5 stud rear wheel whereas the k11 is a 4 stud setup? Is it actually a different model that you used?

Also, how is tyre clearance with the arm, do you get any rubbing?

I'd appreciate if you clarified exactly what parts from which model you used. Cheers !

Allen Nelson · Posted: Fri Dec 06, 2013 12:19 pm Post subject:

Sounds like you've gotten your hands on a later generation K12 set of wheels. I know that the set I had converted for my '96K11RS was a first generation K12.
_________________
REDBRICK, '96RS (formerly owned), K11OG#5
2011 Triumph Sprint GT
Not a turncoat...and do miss my special K

Number 6 · Posted: Fri Dec 06, 2013 1:18 pm Post subject:

I have K12LT wheels front and back. The first generation K12LT had the same disk brake diameter as the K11, otherwise you need to offset the callipers on the fork. The bearings were changed to the same diameter as the K11 so I have the same spindle, only one spacer is different (cannot remember).
The rear wheel is a 5" and was machined to keep front and back wheels aligned, I can fit a 170mm tire on it. I also have a spare 5.5" rim but didn't dare try it.
Going from 18" rear wheel to a 17" (either K11RS or K12) you'd better remove the center stand bushes that the RS does not have.
_________________
I am not a number, I am a free man.

94 K1100LT

aoeu · Joined: 05 Dec 2013 Posts: 2

Thanks for that, really helps. Actually I don't have a bike yet. I've just come from a Kawa W800 which my friend wrote off (crashed). That same friend has an R65 and he's been posting up pictures of flying bricks on his Facebook. Which got me looking into these bikes...
I was planning on stripping one down and cafeing it up and I know there are a few purists on here who may want to hurt me for even suggesting it !

I've just started looking at the BMW K100 then K1100 series, and jeez there are sooooooooo many model variations and differences it really hurts my brain.

I don't have a later generation set of wheels, I was just going on the specs I could find on the internet. It appears the K1200S which was mentioned on here is a 5 stud wheel, didn't sound right. I think it was just a typo.

Is there an generation of K1200/or an identical design wheel, that doesn't require any machining to the rear for alignment?

rbm · Posted: Thu Dec 19, 2013 5:40 pm Post subject:

Does anyone doing this conversion have the dimensioned drawings for the axle and spacer Beachcomber used above? If so, could a set be made available? Thanks.
_________________
- Robert
1987 K75 @k75retro.blogspot.ca
2011 Moto Guzzi V7 Racer

jay k. · Posted: Sun Jan 12, 2014 9:32 am Post subject:

Allen Nelson

Not sure if this will help or not.....I had forgotten I took a picture of the axle. I just can't remember if this is the K11 or 12 axle and if it's already been machined (although I suspect it is, can't think of a reason why I'd take a picture of the non-machined axle)....sorry I don't have the measurements.

_________________
REDBRICK, '96RS (formerly owned), K11OG#5
2011 Triumph Sprint GT
Not a turncoat...and do miss my special K

Beachcomber · Posted: Thu May 22, 2014 11:52 am Post subject:

Sorry for the non response guys - ill health, dog's ill health, death of family member ....... the past 18 months have been a wash out.

Back on it now though!

OK - I'll dig out the drawings / measurements. My conversion is finally completed - although I won't be swapping the new forks in until I have had a set of old K100 yokes [ triple trees ] reamered out to take the 41.7mm K1100 stanchions.

Reason ? I don't like the fuggly ignition switch tower and also the K100 bottom yoke has the mounts for the instrument housing to lower it down - losing yet more fuggliness.

Then it's fitting the RAM Goldline progressive fork springs and a final fettle of the GRP panels - paint and fit up.

Wheels now painted in a nice blingy Gold and looking good [ IMO ]
_________________
Beachcomber '93 K1100RS / '93 K1100LT and several K100's

rbm · Posted: Thu May 22, 2014 1:45 pm Post subject:

Hi Beachcomber,

Thanks a lot for the update. Looking forward to trying this conversion myself.

I started a converstation today on another board, asking about the front brake rotors. It's obvious that K1100 rotors can't attach to K1200 wheels, but the K1200 front brake rotor is 320mm diamater - 15mm larger than the K1100. So, how did you get the Brembo 4-pot brake calipers to fit on the stanchions with a larger rotor? Did you fashion an adapter plate to raise the calipers? Did you even use Brembo 4-pots?

I've seen pictures (from this site) of the conversion done by Allen Nelson but his doesn't have an adapter, which is perplexing for me.
_________________
- Robert
1987 K75 @k75retro.blogspot.ca
2011 Moto Guzzi V7 Racer

Beachcomber · Posted: Fri May 23, 2014 6:00 am Post subject:

I used Discs from my K1100 3 spoke wheel - 305mm / 12".

4 Pot Brembos are stock OEM on K1100. In fact, I took the complete front end off a spare K1100 I had and with the new spindle [ axle ] / spacers - the K1200 wheel dropped right in.

I don't see why there is a problem - my 305mm discs fit straight onto the K1200 wheel ???

here's a pic [ not very good ! ] of the K1100 [305mm ] disc attached to the K1200S front wheel. The 4 pot caliper was also hooked up during this early mock up with no problems.

I'm getting the forks back from my pal's workshop next week, so I'll get some decent pix plus all the dimensions.

_________________
Beachcomber '93 K1100RS / '93 K1100LT and several K100's

rbm · Posted: Fri May 23, 2014 6:16 am Post subject:

Allen Nelson · Posted: Fri May 23, 2014 10:19 am Post subject:

Interesting to see there are still others wanting to convert their wheels. I sometimes wonder who now owns my old K11rs and how the bike is holding up.....I don't think who ever it is has signed up on the K11OG, which is to bad.....would love to see pics of how she is now.
_________________
REDBRICK, '96RS (formerly owned), K11OG#5
2011 Triumph Sprint GT
Not a turncoat...and do miss my special K

Number 6 · Posted: Sat May 24, 2014 9:27 pm Post subject:

Beachcomber · Posted: Sun May 25, 2014 7:01 am Post subject:

Beachcomber · Posted: Sun May 25, 2014 12:40 pm Post subject:

Tyres mounted - forks back next week and I'll have a measure up and relevant pix.

_________________
Beachcomber '93 K1100RS / '93 K1100LT and several K100's

rbm · Posted: Sun May 25, 2014 1:53 pm Post subject:

rbm · Posted: Sun May 25, 2014 1:54 pm Post subject:

Your wheels look awesome, Beachcomber!
_________________
- Robert
1987 K75 @k75retro.blogspot.ca
2011 Moto Guzzi V7 Racer

Beachcomber · Posted: Mon May 26, 2014 5:49 am Post subject:

Number 6 · Posted: Mon May 26, 2014 12:10 pm Post subject:

How about getting a chrome job? How expensive and durable should it be? I've been thinking of it for a while.
_________________
I am not a number, I am a free man.

94 K1100LT

Beachcomber · Posted: Tue May 27, 2014 6:10 am Post subject: