BMW K bikes (Bricks)

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xpc316e

xpc316e
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My K1100 is on the bench and undergoing various minor surgeries.  I have bought a five spoke rear wheel from an early K1200 that I wish to fit, but I have a question about tyre width.  The tyre on the wheel at present is a 170 section, but if a 180 would slot in it would expand my choice of tyres.  Has anyone fitted a 180 section tyre to a K1100LT using the K1200 wheel?


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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.
    

Guest

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Depends, a K1200 5 inch wheel should have a 170, but a K1200 5.5 inch wheel should have a 180.

    

xpc316e

xpc316e
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The rim I have is 5.00" in width; I cannot see that fitting a 180 to it will bring about the end of days, so I am concerned about the clearance between the swinging arm/exhaust if a 180 is fitted on a 5.00" rim.  Anybody been there, done that, and worn out the t-shirt?


__________________________________________________
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.
    

xpc316e

xpc316e
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Gold member
A little Googling reveals that a 180 should have something upwards of 5.25", so I might well stay with the 170/60 and try the new Avon Storm 3D-XM.  The other issue is a 180/55 is slightly smaller in overall diameter than the 170/60 and the last thing I wish to do is lower the gearing, even if it is only a tiny bit.


__________________________________________________
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.
    

Ringfad

Ringfad
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Life time member
On my K100 16v I have tried a 180 on a 5.5 rim with no success. The wheel would require major shimming to clear the swinging arm. I have just had a 170 fitted to the 5.5 rim but will be unable to test this until late next week. Currently I am running a 160 on a 5.0 rim with great success.


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180 section tyre on K1200 wheel for K1100LT Ir-log10

   ;BMW; K100RS Style Black 1987 105K Km     ;BMW; K1 Black 1993 51K Km     ;BMW; K1100RS Red 1993 60k miles   ;BMW; K100 16V Black (ex ElectricMonk)  ;BMW;  K1100LT (Swiss) now a RS
    

Guest

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"I cannot see that fitting a 180 to it will bring about the end of days" Did I say that it would? I was telling you about experiences of tyre and wheel sizes on some of the BMWs that I have owned. The R1100S came with both of those wheel sizes and both of those tyre sizes and it is accepted that it is not a good idea to mix them the wrong way.
I won't bother answering any of your posts in the future if you are going to be aggressive.

    

xpc316e

xpc316e
Gold member
Gold member
Bikerboy, you have got hold of the wrong end of the stick.  I was not being aggressive, or trying in any way to disrespect you after you had posted advice.  I apologise for hurting your feelings - that was not my intention.


__________________________________________________
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.
    

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