Messing around in the garage today

[BMWRich58]

How's this for making air pressure adjustments easier!!

[Rich]

It looks much easier, but I don't know if I would do it. There is a reason those things are supposed to stick straight towards the center of the wheel, and that reason is centrifical force. The faster the speed, the more outward the force. That is why the valve stem caps have the rubber seal in them, with a very high centrifical force, the valve stem may be forced open and let some air out. The rubber seal prevents that from happening.

But then what you put on may be ok, for all I know, without knowing more about what you have. You might want to check it out.

I know one thing, checking the originals suck, and as often as a guy NEEDS to check air pressure, it would be nice if it was easier to get at.

[BMWRich58]

There is a reason those things are supposed to stick straight towards the center of the wheel, and that reason is centrifical force. The faster the speed, the more outward the force. That is why the valve stem caps have the rubber seal in them, with a very high centrifical force, the valve stem may be forced open and let some air out.

You are absolutely "CORRECT" my friend, why angled is superior.

Quote::"The angled quill reduces the effect of centrifugal force, which tends to fling the valve core outwards in a conventional valve, leading to loss of pressure in the tyre. „h It completely solves the problem of access for inflation, so typical of motorbikes.

Unfortunately (the picture of the 90* tire valve below) will not fit BMW wheels,it's made for racing carbon fiber wheels. (I imported two from Italy my loss $$$ :cry ). I did manage to find the silver one's as pictured above in an earlier post. They work "Great"!!! :clap

[Gerald]

California BMW Triumph has an ad in the current issue of BMWON
showing a 90 degree valve stem adapter. I was thinking about trying them out , but was concerned about the seal on them and
the effect of wheel balance with the stems being off to the side.

Has any one tried them out and do they work? I hope this is
not hijacking this thread since it is on the same subject. Please
excuse me if it is.

Gerald

[kbasa]

Don't most car tire stems stick out sideways? The ones on my truck and car do.

[BMWRich58]

California BMW Triumph......

..adapter "Not Reccomended".....put on-check-take off,put on-check- take off,put on-.......

These are installed and stay permenant like a regular valve. Heck, they are a regular tire valve, just at a different angle!!!

E-Mail me for more information.

I will be at the "Pecatonica, Illinois" BMW Flea Market at the end of April for those of you interested in seeing them first hand.
This flea market is turning into a annual "Mini Ralley".

[jdiaz]

Rich, did you have your tires rebalanced with the new valve stems? It might reduce that wobbling over 110mph. :)

[BMWRich58]

Rich, did you have your tires rebalanced with the new valve stems? It might reduce that wobbling over 110mph.

HA!!!! I don't SPEED !!!!

I always ride at least 5mph "under the limit",you know that...:brow

[1flyer]

Considering the angle of the air chuck on the end of the air hose, wouldn't it work better if you turned it 90 degrees? I'm thinking about the way a person holds an air hose and the tire gauge, it seems like you might be 90 degrees off. It looks like it would help clear the rotor a little better too. If I had dimensions it might be easier to visualize the clearance and the ergometrics.

[BMWRich58]

Considering the angle of the air chuck on the end of the air hose, wouldn't it work better if you turned it 90 degrees?

You can turn it any way you prefer!!! :clap
Each and every place that offers air to the public has a different setup anyhow.
The whole idea is to make "access" a little easier. :dunno