BMW K bikes (Bricks)

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Rabidchiwawa007

Rabidchiwawa007
Platinum member
Platinum member
Hello again,

In the process of converting my '92 RS to an LT, here's where I am:

Can I move the fairing forward a bit? Vd6W3DY

My knees on the RS fairing would sit right up next to the fair but would rarely hit.  With the new fairing, my knees are currently sitting inside it.  I don't have the fairing guts installed yet, but if they were installed, my knees would have nowhere to go.

So the question is: Would it be such a bad thing to move the fairing forward about an inch by using spacers at the fairing mounting points?  I have to fabricate fairing brackets / braces to attach the sides to the frame either way.


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1968 BSA Lightning
1991 BMW K100RS 16v with K1100LT fairing
    

Kyle10

Kyle10
Life time member
Life time member
Are you certain fairing mounts for the RS vs. RT/LT are the same? I'm doubtful, somehow. 

Btw, someone always seems to be selling K fairing mounts on fleabay cheap. Seems matched mounts with respective fairings would be in order. Just a guess, mind.


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1985 K100rt 0052183
1983 Honda VF750 007713 
    

Kyle10

Kyle10
Life time member
Life time member
Oh yeah: what is that, a Roadmaster? Century?


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1985 K100rt 0052183
1983 Honda VF750 007713 
    

Rabidchiwawa007

Rabidchiwawa007
Platinum member
Platinum member
The mounts are totally different, but I bought the correct LT mount and it is installed.  The holes on the fairing wouldn't line up otherwise.


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1968 BSA Lightning
1991 BMW K100RS 16v with K1100LT fairing
    

charlie99

charlie99
VIP
VIP
yes always has been an issue for the rt-lt fairings ..with the knees hitting

I had a thought that one of the better ways of fixing it was to resculpture the seat a little so it encouraged you to sit back just a bit

rabid ...remember when you take the fairing forward, some of the lower Tupperware wont line up around the radiator area ...and fork hole stuff

I would think you would have to modify is a bit to suit . which would also mean that the top part wont line up on that rear vertical line near your knees .

just initial thoughts mate

good luck


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cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OCan I move the fairing forward a bit? Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

Rabidchiwawa007

Rabidchiwawa007
Platinum member
Platinum member
@Kyle10: it's a '56 Oldsmobile

@charlie99: based on how it looks when I sit on the bike, I would need to move it forward around 2 inches.  That's a lot.  I would have to get longer studs, and then hope that the offset weight doesn't destroy the fairing / bracket.  Maybe a combo of seat and moving the fairing forward would be best.

Edit: I just tried it with the stock seat (wow this seat is uncomfortable), and my knees don't hit.  I just don't like being back that extra little bit from the bars.  I also lined up the old RS side panels where they would sit and found that the LT fairing goes about 2 inches farther back than the RS fairing.  I'm going to space it forward about 1/2 inch and do the rest via seat sculpting.


__________________________________________________
1968 BSA Lightning
1991 BMW K100RS 16v with K1100LT fairing
    

xpc316e

xpc316e
Gold member
Gold member
The fairing on the K1100LT sat further away from the rider than the K100RT/LT by about 25mm, if my memory serves me correctly.  This change was due to the criticism the K100 got from taller road testers about the lack of knee room it had.

Perhaps you have a K100 mount and not the 1100 mount.  I have a 33" inside leg and am tad over 6'0": my K100LT has me crashing my knees against the fairing, but my K1100LT affords me plenty of room.


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VIN 0191428, 1991 K100LT, formerly owned by Lancashire Constabulary. This old warhorse is now 'out to grass' and living in retirement in Suffolk, where it will be showered with appropriate love and care.

VIN 6459609, 1992 K1100LT, another ex-Police machine, even though she now looks like she is a former fire engine.
    

RicK G

RicK G
admin
admin
The fairing looks like it came from a K1100 so should give more room than a K100LT. As 316 said 25 maybe 30mm further forward but I don't see a problem with spacing it even an extra 25mm. You may get to do some creative work on the side panel mounts though.
I was eyeing off that Oldsmobile and trying to work out a year but got it out by a year. When the American cars were imported to Oz in that era the models were often labelled as a year later here because the suppliers didn't start to send any till the home market was taken care of and then 3 months shipping time.


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"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
    

Rabidchiwawa007

Rabidchiwawa007
Platinum member
Platinum member
Update: I added some thick washers at the mount points for the fairing.  It probable moved up about half an inch, and my knees are much more comfy.  I can still feel the hairs on my legs touch the fairing, but whatever.  Maybe I'll do some seat sculpting in the future.

On another note, I've just realized that I don't have any mirrors, and the old k100rs mirrors are so drastically different that theres no way I could make them work without drilling holes in to my new fairing and then having the finished product look janky anyways.  I checked on eBay and k1100LT mirrors go for upwards of $120 USD Shocked .  For some reason the k100rs mirrors go for around $30 USD.

Does anyone know where I can pick up some k1100LT mirrors for a bit less than $120 USD each?


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1968 BSA Lightning
1991 BMW K100RS 16v with K1100LT fairing
    

AJ.Valente

AJ.Valente
Life time member
Life time member
On my RT I lowered the handlebars, which moves the riding position to the rear an inch or so. Then to accommodate the new position I changed seats to the gunfighter (solo) style. However, one may just as easily use the original (stock) bench seat if you carry pillion passengers.

Note that your windscreen is the high "LT" style, so lowering the handlebars may not be an option. Still, installing a bench seat may make the difference you're looking for.

Cool


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'98 K1200RS Marrakesh Red

My old K100 RT Pics and Mods
    

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