BMW K bikes (Bricks)

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xpc316e

xpc316e
Gold member
Gold member
I have a 1991 K100LT non-ABS, and it has just passed its annual roadworthiness test.  The tester mentioned that the front wheel rim has had a bit of a thump in the past, and I'd like to replace it.  An ebay search reveals many wheels for sale, but they are for 83-89 years.  Some listings state that they will fit up to 92 models, but I am confused.  I do not want to spend out on a wheel only to find it will not fit, so can anyone tell me whether the older wheels will fit my machine, and what the differences might be?  Thanks.


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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.
    

charlie99

charlie99
VIP
VIP
what tyre is currently fitted ?

from your profile pic it appears you have the standard wheel off all the earlier series   so I would be guessing a 18 inch  snowflake  design ...?

you shouldn't have any issues at all finding one .
just replace the bearings before fitting it .


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OK100 Front Wheel - differences between years? 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 ..
    

xpc316e

xpc316e
Gold member
Gold member
Thanks Charlie99.  The current wheel is an 18" Snowflake design.  I was going to get it powder coated and replace the bearings before installing the new one, but thanks for the heads-up.


__________________________________________________
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.
    

Two Wheels Better

Two Wheels Better
Moderator
Moderator
4-spoke (Y-spoke) alloys for later Airheads and 2-valve K Bikes
Front:
These are the same for K and '85 on Airheads, and accept fixed 285mm brake rotors which mount with 4 bolts near the center of the wheel. Bearings accept 25mm axles.

  • Silver 2.5x18 36 31 1 451 897
  • Black 2.5x18 36 31 1 457 361

This is technically a snowflake wheel from BMW. They weren't ever put onto K bikes.
K100 Front Wheel - differences between years? Snowfl10


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“Some people see things that are and ask, ‘Why?’. Some people dream of things that never were and ask, ‘Why not?’. Some people have to go to work...

~George Carlin

1970 R60/5, OZ '77 R75/7-R100, '85 K100'87 K75C, OZ '87 K100RS, '93 K11-K12 Big Block, '93 K1100RS, '95 R100-Mystic, '96 K1100RS, '98 K1200RS, '00 K1200RS, '02 K1200RS, '03 K1200GT, '04 R1150R'04 R1150RT, '05 K1200S, '06 K1200R, '07 K1200R, '09 K1300GT & 2013 R1200RT-Polizei  - Beemers owned still or sold.

    

duck

duck
Life time member
Life time member
And there's also the white Y spoke that came on the blue/white K100RS-SE: 36312310129


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Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT (x2)
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
98 Taxi Cab K1200RS
14 K1600GT
http://www.ClassicKBikes.com
    

6Back to top Go down   K100 Front Wheel - differences between years? Empty Want a spare front wheel? on Mon Nov 11, 2013 9:41 am

colinijohnson

colinijohnson
Silver member
Silver member
Hi there
I have a spare one in the garage to can have for next to nothing as you are part of the forum
Collection prefered - or £30 posted
Off a 1989 lt - I bought it for the nearly new tyre for £50 -
Colin


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k100lt 1989 abs
    

charlie99

charlie99
VIP
VIP
thanks twb ...that is a far better description ..."y" spoke....must have picked up on the incorrect description in here somewheres .


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OK100 Front Wheel - differences between years? 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 ..
    

MikeP

MikeP
Life time member
Life time member
You may notice a difference in the outer rim.

The older Y-spoke wheel had a concave rim. This was changed when BMW started using a stronger alloy and the outer rim lost the concave profile becoming flat instead.

They all fit though.

Early rim:

K100 Front Wheel - differences between years? K75S%20%2852%29-L

Later:

K100 Front Wheel - differences between years? BMW%20K75S%20%2857%29-L


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1992 K1
1993 K1100R (used to be an LT)
    

charlie99

charlie99
VIP
VIP
good point mike

wonder if that makes the later models less prone to damage etc ?


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

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OK100 Front Wheel - differences between years? 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 ..
    

MikeP

MikeP
Life time member
Life time member
I think that was the reason for the change Charlie. They're supposed to be stronger. I don't think that I'd want to test that theory though.


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1992 K1
1993 K1100R (used to be an LT)
    

sidecar paul

sidecar paul
Life time member
Life time member
It's surprising the number of detail tweaks and alterations that occurred during K production, but, fortunately most parts are still interchangeable. K100 Front Wheel - differences between years? 112350 Thank you, BMW.

Paul.


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'84 K100RS (0014643) (owned since '85), 86 K100RS (0018891) with Martello sidecar (built as an outfit in '88),
'51 Vincent (since '67),'72 Montesa Cota (from new), '87 Honda RS125R NF4 (bought 2015) 
....No CARS never ever!
    

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