BMW K bikes (Bricks)

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active member
active member
Hi All,

I'm not finding this in the three manuals I have or on the forum. Maybe the answer is just snug or tight enough so that it doesn't leak but I thought I'd ask before I put back together. I probably have a standard torque chart around for an 8mm.

Is there a proper torque for the outside tire valve stem nut?

Also, MAX mentions the use a washer with the nut, the bike I'm working on I don't believe has ever has this washer, this is recommended is it? I'm sure I have an 8mm washer in my junk. 

I should also ask... I should grease this oring correct? Any suggestions, belray waterproof or whatever I have around?

Steel. The o-ring goes on the “inside” of the tire/rim and the nut goes on the “outside” of the tire. The 8mm tire valve should be used with a 8mm washer 07 11 9 931 697, which is sold separately. The 697 washer interchanges with similar washers- 07119904826, 07119931660, 07119904919. The washer, nut, and dust cap are all visible when the wheel is on the bike. We believe the o-ring can leak if you over tighten the nut.


1985 K100
Rear wheel snowflake

06 36 32 1 452 748
1985 K100 8mm Dia Steel Tire Valve Stem Nut Torque B0000884

The nut I'm talking about is below.
1985 K100 8mm Dia Steel Tire Valve Stem Nut Torque 36321452748_2_B



Life time member
Life time member
Just nip it up, then try the spit test (spit on your finger and wipe it around the valve stem to see if it's leaking). That's all I've ever seen my tyre mechanic do in twenty-five years of using the same shop. Yes, there should be a washer on there. It helps spread the o-ring and seal it, whereas with just the nut there is a remote chance that the nut will grab the o-ring and tear it.

1983 K100 naked upgraded to K100LT spec after spending time as an RS and an RT
1987 K100RT
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500


Life time member
Life time member
A generic Google search says 11 ft-lbs which seems about right to me.

If you know who made the valve stem then you could email their tech support.

I've never used a washer on the nut.

I wouldn't worry about lubing it.

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
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
98 Taxi Cab K1200RS
14 K1600GT

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