BMW K bikes (Bricks)

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1Back to top Go down   Eighties K100 racer Empty Eighties K100 racer on Wed Jul 29, 2020 6:19 pm

jbt

jbt
Silver member
Silver member
Back in the days, the K100RS was advertised as a sport tourer bike. Well, tourer ok, sport...not really, even if it was really efficient, in spite of a relatively modest power.
So some tried to improve this sport side, with parts or accessories made for the K100. Few companies, in fact...Wüdo, Fallert, Wulf Gerstenmaier made a wonderful sport K100, Luftmeister in the USA with turbo kits...but that's all.
With no support from the factory in road racing championships, nobody wanted a look alike bike, so sport parts designed for K100 are quite rare. The BMW catalog only offered a one person sport seat, sport footpegs and sport suspension from White Power.
Rovering in european swap meets, I found some of these  parts, year after year, collecting them, hoping to find one day time to build an 80's racer replica.
And then Covid 19 arrived!
Yeah! Plenty of free time, a big garage, a lot of spares and the basis, a damaged 1989 K100LT, bought last summer for 300€...let's start.
Goal: build a sport K100, only with dedicated parts from the eighties. No chinese crap made for today's  shorttailed "racers", no led lights, no digital speedo, and no fucking diarrhea colored short tail .

After installing new fork tubes and overhauling the dampers, a Telefix link was installed to get this fork more rigid. I could have installed a Showa fork from a K75...but I prefered this option, that allowed me to change also the front mudguard.
3 spoke optionnal wheels, named "sport wheels" in BMW part list, but in fact heavier than Y spoke wheels, were installed. Renewed brakes, the ABS is still in place, until I can test it on road. If it's out of order, as I'm awaiting, I'll remove it to save weight (14kg).
Then the engine was serviced, with a full new injection line from the pump to the injectors.
The exhaust comes from France, Recchia, a BMW dealer from Lyon, made by Bobopot, an exhaust maker nearby. Street legal, different sound but not too noisy.
I found K100 rearsets from ABM and the Fallert seat in a small swap meet I'm visiting monthly not very far from home. Very unlikely to find these rare parts there...but they were.
The footpegs are uncomplete, so I had to install a master cylinder outside with a direct command, instead of the original device. Too big (16mm Nissin instead of the 12mm Lagura) for the caliper, it's almost inefficient. But the Covid lockdown made it difficult to find the good parts...I'll change it later.
The seat was a 2 person, but the passenger seat was missing. So an new foam and new upholstery were made to create an single person seat.
The rear damper was changed for an Ohlins shock, with a new spring.
A K75S handlebar was fitted. Clips on bars could have replace it, but I'm getting too old to cope with this position
For the fairing, I first tried a Ducati half fairing. Good looking...but not the spirit, and so many time used and seen. So I used a half RS fairing, with no side panels nor radiator cover, but it was tilted forwards, for a more sporty line, with home made brackets. I had planned to install a smaller rectangular headlight, but found that the windscreen shape was eventually too complex for my skills to extend it from a polycarbonate sheet. I've been searching a twin round headlight from Wüdo, with no success.

Then today: first start, and first ride!
Eighties K100 racer Img_2135

Eighties K100 racer Img_2134

Eighties K100 racer Img_2133
Very short and prudent ride, as the temperature today is so hot that I could not do a real test ride wearing only shorts and T shirt. But the few kilometers I rode were enough to enjoy the good and honest behavior of the bike. Excellent roadhanding, lighter than my basic K100, good position. The engine needs some ajustments at idle, but it revs quite well!



Last edited by jbt on Fri Jul 31, 2020 3:16 am; edited 1 time in total

    

2Back to top Go down   Eighties K100 racer Empty Re: Eighties K100 racer on Wed Jul 29, 2020 6:39 pm

chris846

chris846
Life time member
Life time member
I absolutely love the way you've set yourself a very specific theme for the bike - 'exotic eighties'. It seems to be true to the bike, and much more likeable than inflicting an unsuitable 2020 makeover on a stately veteran. The K is a landmark bike; so much more than a coat-hanger for this year's fashion.
Nice one  Smile


__________________________________________________
Sometimes I'm not really Suzi Quatro.
    

3Back to top Go down   Eighties K100 racer Empty Re: Eighties K100 racer on Wed Jul 29, 2020 7:06 pm

Dai

Dai
Life time member
Life time member
+1. Very Happy Very Happy


__________________________________________________
'83 K100 upgraded to K100RS spec, '87 K100RT
Others...
'78 Moto Guzzi 850-T3, '79 Moto Guzzi 850-T3 California,'93 Moto Guzzi 1100ie California
    

4Back to top Go down   Eighties K100 racer Empty Re: Eighties K100 racer on Wed Jul 29, 2020 10:31 pm

Basic2

Basic2
Platinum member
Platinum member
+another 1 Very Happy


__________________________________________________
K100 Basic 2
11/1987 6308319K100CJ
Marakesh Red
    

5Back to top Go down   Eighties K100 racer Empty Re: Eighties K100 racer on Thu Jul 30, 2020 6:53 am

Woodie

Woodie
Life time member
Life time member
Always beautiful builds Jbt!  Your knowledge of the obscure aftermarket options amazes me equally as much as your ability to find these parts.


__________________________________________________
1985 K100RT
52667
"Keep your stick on the ice.  We're all in this together."  Red Green
    

6Back to top Go down   Eighties K100 racer Empty Re: Eighties K100 racer on Thu Jul 30, 2020 7:15 am

jbt

jbt
Silver member
Silver member
About this search skills, let me tell you a story.
7 years ago, I was starting a business, opening a garage dedicated to airheads.
I was spending a lot of time wandering for NOS special parts, buying stocks from dealers, so my wife had enough and kidnapped me for a holydays week in Marroco, sort of  rehab .
We were hiking in the Atlas mountains, and she asked me: "So? Don't you fell good now and here, not thinking about BMW parts, in the middle of nowhere?"
I was about to answer when I saw somethin on the ground, in the gravel: A round BMW emblem.
"Are you kidding me?"
She never agreed that it was pure hasard and that I did not throw it there on purpose.
Once I collected it, we heard a roaring engine coming.
A brand new R1250GSLC approached.
Then a second.
Then a third, then 4, 5, 6 etc.
She looked at me je like she would consider a sorcerer.
BMW had planned at this place a test week for worldwide dealers for the new GS release.
We met them all the week long, we had exactly the same schedule, even at hotel, even in Marrakesh souk.

    

7Back to top Go down   Eighties K100 racer Empty Re: Eighties K100 racer on Thu Jul 30, 2020 7:39 am

Bonzo

Bonzo
Platinum member
Platinum member
@chris846 wrote:I absolutely love the way you've set yourself a very specific theme for the bike - 'exotic eighties'. It seems to be true to the bike, and much more likeable than inflicting an unsuitable 2020 makeover on a stately veteran. The K is a landmark bike; so much more than a coat-hanger for this year's fashion.
Nice one  Smile
Couldn't have put it better myself Chris  Eighties K100 racer 112350


__________________________________________________
1990 K100RS 4V (VIN# 6406682)
2017 R1200RS SE Sport
    

8Back to top Go down   Eighties K100 racer Empty Re: Eighties K100 racer on Thu Jul 30, 2020 7:40 am

Bonzo

Bonzo
Platinum member
Platinum member
@jbt wrote:About this search skills, let me tell you a story.
7 years ago, I was starting a business, opening a garage dedicated to airheads.
I was spending a lot of time wandering for NOS special parts, buying stocks from dealers, so my wife had enough and kidnapped me for a holydays week in Marroco, sort of  rehab .
We were hiking in the Atlas mountains, and she asked me: "So? Don't you fell good now and here, not thinking about BMW parts, in the middle of nowhere?"
I was about to answer when I saw somethin on the ground, in the gravel: A round BMW emblem.
"Are you kidding me?"
She never agreed that it was pure hasard and that I did not throw it there on purpose.
Once I collected it, we heard a roaring engine coming.
A brand new R1250GSLC approached.
Then a second.
Then a third, then 4, 5, 6 etc.
She looked at me je like she would consider a sorcerer.
BMW had planned at this place a test week for worldwide dealers for the new GS release.
We met them all the week long, we had exactly the same schedule, even at hotel, even in Marrakesh souk.

Haha - that's great  bounce


__________________________________________________
1990 K100RS 4V (VIN# 6406682)
2017 R1200RS SE Sport
    

9Back to top Go down   Eighties K100 racer Empty Re: Eighties K100 racer on Thu Jul 30, 2020 4:56 pm

jbt

jbt
Silver member
Silver member
New pics this evening:
Eighties K100 racer Img_2137
Eighties K100 racer Img_2136

    

10Back to top Go down   Eighties K100 racer Empty Re: Eighties K100 racer on Thu Jul 30, 2020 7:48 pm

TacKler

TacKler
Life time member
Life time member
Those are two of the most beautiful images I have seen of K bikes, ever.  The lighting, the surrounds and the presentation of the subject.  

Merci beaucoup, M'sieur.


__________________________________________________
Red 1991 K75S
    

11Back to top Go down   Eighties K100 racer Empty Re: Eighties K100 racer on Thu Jul 30, 2020 9:45 pm

Woodie

Woodie
Life time member
Life time member
Yup ^^^^^gorgeous!!  And a great story too Very Happy


__________________________________________________
1985 K100RT
52667
"Keep your stick on the ice.  We're all in this together."  Red Green
    

12Back to top Go down   Eighties K100 racer Empty Re: Eighties K100 racer on Fri Jul 31, 2020 3:28 am

jbt

jbt
Silver member
Silver member
The light was pretty nice this evening, a huge wall of storm clouds reflecting the sunset colors, enhancing the body lines and shape of the K.
Eighties K100 racer Img_2140
I missed the unicorn matching the colors of the sky, but I saw the Giant Crocodile, emerging from the sea of clouds at dusk, hunting for its prey...
Eighties K100 racer Img_2139

    

13Back to top Go down   Eighties K100 racer Empty Re: Eighties K100 racer on Fri Jul 31, 2020 9:12 am

Point-Seven-five

Point-Seven-five
Life time member
Life time member
Very nice photos of a really great bike.

If I might offer a tip to anyone wanting to take photos of their bike.  Try to keep the camera 1 meter or less above the ground.  My best photos are with the lens at about 70-80cm.  That is how the pros get those nice images, and is one of the things that makes these photos look so good.


__________________________________________________
Present:
1994 K75RT
1991 K100RS
1988 K100RS SE

Past:
1994 BMW K75S
1992 BMW K100RS
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

14Back to top Go down   Eighties K100 racer Empty Re: Eighties K100 racer on Fri Jul 31, 2020 2:28 pm

Bonzo

Bonzo
Platinum member
Platinum member
I love the pinstriping on the fairing. White on black.

In a previous life my 16v was silver (more like white) with a blue pinstripe. When I went all black I considered adding the same pinstripes (but in white), but didnt know how to do it.


__________________________________________________
1990 K100RS 4V (VIN# 6406682)
2017 R1200RS SE Sport
    

15Back to top Go down   Eighties K100 racer Empty Re: Eighties K100 racer on Fri Jul 31, 2020 3:54 pm

Woodie

Woodie
Life time member
Life time member
@Bonzo wrote:I love the pinstriping on the fairing. 
Yes!! and I really like how the white piping on the seat works with it too.  JBT you will have to show us the different bikes that you have modified.  Based on the K75GS and this K100 Racer I'm guessing that there might be few others tucked away that are unique as well.


__________________________________________________
1985 K100RT
52667
"Keep your stick on the ice.  We're all in this together."  Red Green
    

16Back to top Go down   Eighties K100 racer Empty Re: Eighties K100 racer on Fri Jul 31, 2020 4:17 pm

moriarti

moriarti
Gold member
Gold member
@Bonzo wrote:I love the pinstriping on the fairing. White on black.

In a previous life my 16v was silver (more like white) with a blue pinstripe. When I went all black I considered adding the same pinstripes (but in white), but didnt know how to do it.
You tube tutorials,fiddly but manageable


__________________________________________________
1984 k100 rs red/black VIN  0004449
    

17Back to top Go down   Eighties K100 racer Empty Re: Eighties K100 racer on Fri Jul 31, 2020 7:00 pm

jbt

jbt
Silver member
Silver member
I also wanted to pinstrip  the rear fairing, to emphasize its shape.
But...it's not pinstripping for now, simply a thin tape to test how it looks before real painting.

And Woodie, yes, I have other modified K's...
particularly this one:
Eighties K100 racer K100_c14
Eighties K100 racer K100_c13
Eighties K100 racer K100_c12
Eighties K100 racer K100_c11

It pairs with another K with sidecar, a K1:
Eighties K100 racer Comanc15

I did not modified it much, nature did it...rust has attacked it a lot, as the previous owner used it only for winter rides, on salted roads. And with 225 000 km on the odometer, it's aging, but still runs well. Excellent roadholding, thanks to the width and the special front end.
Eighties K100 racer Side_k11
I wanted to restore it, but it's a long work...

With just 2 wheels, I have also a '85 basic K100, with no spectacular modifications, just a crash bar, a WP rear shock and, depending of the use, a BMW sport seat, a '95 K1100LT and a fully restored K1. And many others BMWs or other brands.
I think that the next K I'll modify will receive a King's fairing.

    

18Back to top Go down   Eighties K100 racer Empty Re: Eighties K100 racer on Fri Jul 31, 2020 11:32 pm

Point-Seven-five

Point-Seven-five
Life time member
Life time member
Not to hijack this thread, but 3M makes a good pinstriping tape.  Works well for making multiple stripes with uniform spacing.  I shoot the stripes with an airbrush and then clearcoat them to protect them from wear. 

Photos of two bikes I used the tape on.

Eighties K100 racer Dscn3121
Eighties K100 racer Dscn3712


__________________________________________________
Present:
1994 K75RT
1991 K100RS
1988 K100RS SE

Past:
1994 BMW K75S
1992 BMW K100RS
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

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