BMW K bikes (Bricks)

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1Back to top Go down    Greetings from South Dakota on Sat Sep 01, 2018 12:45 pm

UncleAl

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It seemed like time to stop being "visitor" and join the ranks. My current driver is a 1988 K75S showing 51K. It's had a color change, from faded red to metallic blue, had the rear drive swapped for taller gears, and is now waiting for its (sorta) new engine fairing to be painted while it does its level best to reject a Rostra cruise control installation.

    

2Back to top Go down    Re: Greetings from South Dakota on Sat Sep 01, 2018 12:57 pm

Dai

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Plenty more room in here.


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'83 K100 upgraded to K100RS spec
Others...
'78 Moto Guzzi 850-T3, '79 Moto Guzzi 850-T3 California,'93 Moto Guzzi 1100ie California,
'03 Suzuki Blandit GSF600SK3 (NFS any more because wifey has claimed it)
    

3Back to top Go down    Re: Greetings from South Dakota on Sat Sep 01, 2018 2:57 pm

brickrider2

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welcome to the group, Uncle Al.

    

4Back to top Go down    Re: Greetings from South Dakota on Sat Sep 01, 2018 3:14 pm

Point-Seven-five

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Welcome!  Is "Dakota" the Sioux word for "white pickup truck with duals"?  I was out there a couple years ago and they were as plentiful as the bison used to be.


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Present:
1994 K75RT
1994 K75S
1992 K100RS

Past:
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

5Back to top Go down    Re: Greetings from South Dakota on Sat Sep 01, 2018 4:09 pm

UncleAl

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It's permissible to have a silver truck, but they're normally not brought into town.

    

6Back to top Go down    rear drive on Tue Sep 04, 2018 3:07 am

filastein

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@UncleAl wrote:It seemed like time to stop being "visitor" and join the ranks. My current driver is a 1988 K75S showing 51K. It's had a color change, from faded red to metallic blue, had the rear drive swapped for taller gears, and is now waiting for its (sorta) new engine fairing to be painted while it does its level best to reject a Rostra cruise control installation.
How did you go about changing the read drive for taller gears. I to have an 88 K75s in red and always felt the need for higher gears.

    

7Back to top Go down    Re: Greetings from South Dakota on Tue Sep 04, 2018 3:25 am

Laitch

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@UncleAl wrote:My current driver is a 1988 K75S showing 51K. It's . . . had the rear drive swapped for taller gears . . .
What is the ratio you installed?


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1995 K75T 68,000 miles
    

8Back to top Go down    Re: Greetings from South Dakota on Tue Sep 04, 2018 8:42 am

Markosaurus

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Hi UncleAl


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;BMW; K75RT “Lil’ Blue”
    

9Back to top Go down    K75 Gearing change on Tue Sep 04, 2018 12:29 pm

UncleAl

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I took the easy way out and replaced the entire rear drive. I think the one I got was from a K100RS. It's a 31/11 ratio (2.82:1), but they came in others - 2.91 and 3:1 that I can remember. I had planned on the 3:1, but this became available and has worked out well for me, as I rarely have a passenger. I believe all the K100/K75 drives - except for the K100RS 4-valve unit - are interchangeable, and since the speedo counts rear wheel revolutions there is no induced error. As I remember from running the numbers at the time, my 4th gear now is the same as 5th was with the 3.20 gears. It made a noticeable but tolerable hit to the acceleration, and it's more relaxed on the road.



Last edited by UncleAl on Tue Sep 04, 2018 10:15 pm; edited 1 time in total (Reason for editing : Sins of omission)

    

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