BMW K bikes (Bricks)

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ffbikersa

ffbikersa
Platinum member
Platinum member
Hello everybody,

A buddy who runs a BMW workshop approached me today with an unusual question: someone who owns a 1991 K 1100 LT complained to him how he's "missing a 6th gear" in his gearbox. I often had the same feeling while riding my K 1100 RS. The LT in question has the final drive unit marked with 31/11 - and my buddy asked me to check if final drive units with other ratios have been installed on the Paralever models. I had a look at the Motorworks site and found out that 32/11 too was installed on K 1100 LT as well, while 33/12 was foreseen for K1.

Has someone tried installing a 32/11 (or 33/12) unit instead of 31/11 - and if yes, what were the results? Is it possible to obtain just the different gear wheels and replace them, instead of the whole unit? Of course this question may be answered by K 100 and K 75 owners too, as there too final drive units with different ratios have been installed.

Missing 6th gear on a K 1100 / installing different final drive unit? Final_10

Cheers,
Tarik

    

2Back to top Go down   Missing 6th gear on a K 1100 / installing different final drive unit? Empty gear changes Tue Sep 12, 2017 7:52 pm

klompy the grey brick

klompy the grey brick
VIP
VIP
Can always put a larger profile tyre or rim on if top speed is an issue....ie K1100RS is 18inch 

Cheaper easier and can even borrow to trila from a friend.


__________________________________________________
KKlompy Missing 6th gear on a K 1100 / installing different final drive unit? 2854237993
"Grace" 1984 K100RS Silver VIN 0019026 Mitt eine Staintune Zorst.
"Olivia" 1997 K1100LT Dark Grey VIN WB1052600W0237453.









Chassis number0019026
Vehicle code0503
SeriesK589
ModelK 100 RS 83 (0502 ( 0503 )
Body typeK 100 RS 83 (0502
Catalog modelECE
Production date1984 / 07
Engine0513)

Missing 6th gear on a K 1100 / installing different final drive unit? Au-log10


    

Rick G

Rick G
admin
admin
I have a 2.62 ratio from a K1200RS/GT which to be quite honest does not prevent needing a 6th gear. There is one gear set that is used which is 2.53 from an R1200c.  I also have a 2.75 ratio drive sitting somewhere in my shed that I believe came from a later model K1100 (not sure if an RS or LT) it is a direct fit but the others will need to be swapped into a K1100 paralever housing.
This chart will help

Missing 6th gear on a K 1100 / installing different final drive unit? Image212


__________________________________________________
"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 2004 K1200GT 1998 K1100 LT, 1986 K75 GS.
    

Gaz

Gaz
Life time member
Life time member
Don't worry about a sixth gear - just let it rev! The engine loves it and starts to wake up at 5,000RPM.


__________________________________________________
Gaz
1990 K75 6427509; 1987 R80G/S PD 6292136; 2010 G650GS ZW13381; 95 K1100LT 0232224
    

GB777

GB777
Silver member
Silver member
I have installed the R1200C gears into the final drive housing on my K1100RS and previously into the final drive housing on my K100 and it works great. It trims off about 500 rpm in top gear at 100kph. There is another thread on this forum which has covered this topic.


__________________________________________________
Gary
'94 K1100RS Mystic Red
•Dyno Tuned to deliver 115 bhp. •Audiovox CCS-100 Vacuum Cruise Control. •Fuel Plus Version 3.1 Trip Computer. •R1200c Final Drive Gears (32/13 or 2.54). •Ohlins rear shocky. •K100 complete Aluminium Radiator fitted. •Davies Craig Thermo Switch fitted to Cooling Fan with manual over-ride. •Fuel Cap drilled and tapped to provide mounting points for accessories, including mini Tank Bag & Garmin 390 Zumo GPS •HID Hi-Lo Headlight and every other incandescent bulb on bike replaced with LED's. •Bulb monitoring warning light no longer needed so converted to indicate when Side Stand is down. •LED (Halo) Front Park Light (BMW Car style).
    

6Back to top Go down   Missing 6th gear on a K 1100 / installing different final drive unit? Empty 6th Gear Mon Jan 01, 2018 5:55 pm

Pegasus

Pegasus
Silver member
Silver member
G'day Garry,

long time no see.
I still have my 93 K1100RS and I'm still out at Ipswich.

cheers,

Andrew

    

92KK 84WW Olaf

avatar
Life time member
Life time member
To add to this thread, is it necessary to swap the inners or can one simply swap final drive [and driveshaft?] ?


__________________________________________________
1992 K100LT 0193214 Bertha Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 106,950 miles Deceased.
1983 K100RS 0011171 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 49,840 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 42,640 miles.

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

Rick G

Rick G
admin
admin
You have to swap the innards because there is no shock mount, no speedo sensor or caliper mount.


__________________________________________________
"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 2004 K1200GT 1998 K1100 LT, 1986 K75 GS.
    

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