BMW K bikes (Bricks)

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DadofHedgehog

DadofHedgehog
Silver member
Silver member
Folks,

A neighborhood K75 riding buddy and I have taken a close look at our very mis-matched, E-Bay-sourced sets of cases and, in his case, an E-Bay seat. My buddy, with one K57, needed three keys for the bike, while I, with my two K bikes, discovered I also had some missing wafer tumblers and also some flat-out mis-matched tumbler assemblies.

If any member out there has an unneeded collection of the lock wafer tumblers (to include the end split-bottom retaining wafer tumblers), or just plain excess old lock cylinders with their wafer tumblers inside, pls PM me. Appreciations in advance!


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PRESENT:
1995 K75T.  I am the 3d owner.  Bought it in June 2019 with 6,242 miles on the odo.
1991 K100RS 4-valve attached to a 1990 Flexit sidecar. I am at least the 3d owner. Bought with 21,00+ miles on bike's odo.

PAST:
old (indeterminate age) Ural + sidecar
1997 Buell S3T Thunderbolt
1982 BMW R100CS
1974 Kawasaki KZ400
1970 Suzuki Titan
    

Two Wheels Better

Two Wheels Better
Moderator
Moderator
Most Bay Em Vay dealers, of some time in the moto biz, have a stockpile of these bits in their parts or service departments. Be sure to enquire after the single sided version. It's been fifteen years or so since these were common so they might be willing to let you have the whole lot. We keep a smattering of them round for Airhead, early K and early F series emergency lock cylinder building or repairing.

51 25 2 303 680 is the lock cylinder with 'tumblers' and with key if you can locate these for cheap. The 'tumblers' don't have their own part numbers, alas.


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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.

    

MartinW

MartinW
Life time member
Life time member
Quite a number of years ago I got a complete set of pannier locks (6) from the UK. Prices have now gone up with Motobins 47.50 UK pounds, Motoworks 44.50 UK pounds. At the time the cost worked out to around $ 60-80 Aus. The locks are all keyed the same and my OEM ignition key fitted them. I have found that my ignition key is capable of opening quite a few sets of panniers, including a Type 2 set bought as part of a package deal missing a key.
Regards Martin.


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K75s Hybrid
    

DadofHedgehog

DadofHedgehog
Silver member
Silver member
@Two Wheels Better wrote:Most Bay Em Vay dealers, of some time in the moto biz, have a stockpile of these bits in their parts or service departments. Be sure to enquire after the single sided version. It's been fifteen years or so since these were common so they might be willing to let you have the whole lot. We keep a smattering of them round for Airhead, early K and early F series emergency lock cylinder building or repairing.

51 25 2 303 680 is the lock cylinder with 'tumblers' and with key if you can locate these for cheap. The 'tumblers' don't have their own part numbers, alas.

Yes, and it's a bit of a shame because there are only four brass wafer "tumbler" variants overall - the end locking wafer with the slotted bottom, and three wafer "tumblers" of varying heights of their transverse bottom piece which work with the key cut dips. Maybe if BMW had specified they be stamped with a 1, a 2 and/or a 3 depending on their transverse key height, there would continue to be an parts orders market for them now.

In my experience, fewer and fewer dealers maintain that particular excess parts bin, unlike the excess parts bin for the newer 2-sided keys. The closest one, Bob's BMW, used to even 18 months ago but I just cleaned their excess bin out of the very last old single-side key cylinder.


__________________________________________________
PRESENT:
1995 K75T.  I am the 3d owner.  Bought it in June 2019 with 6,242 miles on the odo.
1991 K100RS 4-valve attached to a 1990 Flexit sidecar. I am at least the 3d owner. Bought with 21,00+ miles on bike's odo.

PAST:
old (indeterminate age) Ural + sidecar
1997 Buell S3T Thunderbolt
1982 BMW R100CS
1974 Kawasaki KZ400
1970 Suzuki Titan
    

MartinW

MartinW
Life time member
Life time member
I found that it is the final locking wafer that seems to go missing along with it's spring. I wondered whether it would be possible to manufacture the wafers using a CNC machine. I did once try to get some replacement springs but couldn't find a source.
Regards Martin.


__________________________________________________
K75s Hybrid
    

Point-Seven-five

Point-Seven-five
Life time member
Life time member
This has made me spend some time ruminating on luggage locks this afternoon.

It seems to me that the plastic luggage found on classic K bikes isn't all that hard for the determined thief to enter, hence, in my view the only purpose of the lock is to prevent the latch from opening due to vibration, and the tumblers/wafers in the cylinder to prevent the lock from unlocking on it's own.

To that end, it seems to me that any more than one tumbler is overkill and only leads to frustration when one has several bikes and numerous keys and pieces of luggage.

I have decided to make a winter project of removing unnecessary tumblers and attempting to make all my latches work with all my ignition keys. At worst, I may be able to come up with a master key that will work with all ten pieces of luggage now in my possession. It might also make it possible to eliminate a few of the 17-18 keys I now have hanging around.


__________________________________________________
Present:
1994 K75RT
1991 K100RS
1988 K100RS SE

Past:
1994 BMW K75S
1992 BMW K100RS
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

mw074

mw074
active member
active member
If anyone is interested, I have complete new sets of 6 lock cylinders and 2 keys for $50. plus shipping CONUS.Looking for saddle case lock cylinder "wafer tumblers" and the  end split-bottom retainer wafer tumblers. Img_1810


 51252303683[url=https://shop.maxbmw.com/fiche/PartsSearch.aspx?&searchtype=undefined&parts=51 25 2 303 683#P51252303683] Looking for saddle case lock cylinder "wafer tumblers" and the  end split-bottom retainer wafer tumblers. ArrowDown[/url] SET: SET OF LOCKS0.33 $96.00Looking for saddle case lock cylinder "wafer tumblers" and the  end split-bottom retainer wafer tumblers. Addtocart
This is a bag of six locks. Enough to do both bags.
Looking for saddle case lock cylinder "wafer tumblers" and the  end split-bottom retainer wafer tumblers. 51252303683_1_N Looking for saddle case lock cylinder "wafer tumblers" and the  end split-bottom retainer wafer tumblers. 51252303683_2_N 



Last edited by mw074 on Mon Feb 22, 2021 6:52 pm; edited 1 time in total (Reason for editing : mistake)

    

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