Tyres, Brakes and Suspension » Tyre Valves Too Short?

Hi All,

Last week I popped into a service station to check the tyre pressures, before setting out on a journey. I pressed the nozzle onto the valve and there was lots of air hissing. I checked the tyre pressure on the gauge and it was dropping! I stopped using it and road gingerly to the next petrol station, assuming it was a fully air line. Same happened at the next garage and then again at a third. At the last one I managed to get some air in by holding the nozzle firmly and very squarely on to the valve with my thumb and putting the air line into 'Inflate from flat' mode. It took a while and lots of faff but I managed to inflate it. This wasn't possible on the first two lines.

So, I'm figuring there is something amiss with my tyre valves. They do look a bit shorter than other bikes I've had before. Is this a 'Thing'? I went to Halfords after getting some air in to buy a gauge and check the air line was reading right. While there I bought some valve extensions. I haven't used them yet but will do next time I'm out and need air - Do other people find they have to use these?

I did wonder if the valve could be extended out of the rim and locked up. Could they have been set too short at the factory?

It's a first for me and wondered if anyone else had this issue?

Thanks

Kev

I use a standard forecourt PCL at home and I've never had a problem with the tyre valves. You do have to go on nice and square though!

Had a similar problem while owning a K1300S,it didn't like the air pumps at Shell garages. Use my own compressor now so not noticed this with the RS.

I don't trust gas station air chucks working properly.
I have a small compressor at home and carry a 12V air compressor on trips.

I always carry and use a valve extender unless I'm using my own inflator at home.
Some garage ones are too numb and allow more air to escape than be admitted.
They have usually been thrown to the ground and driven over more than once.
The valve extender gives more room and avoids any damage to threads that may occur.
Alan

The same thing happened to me for the first time this sunday.
Never had any problem at my regular service station, but impossible to inflate correctly at two other service stations, due to leaking, when I was out for the day and I also got the impression that the valve was too short for the inflator.
I think a valve extender could be a good investment.
Kev

Zitat von wessie im Beitrag #5

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. Plus, you should be checking pressures when the tyres are cold.

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I’m another one who had trouble at a few garage airlines while travelling in July. I had a very slow puncture so needed a top up.

My own home compressor never has a problem on the bike valves, so I put it down to the really cheap and nasty and abused forecourt air guns that let more air out than they can put in.

My 12V Slime pump did a better job.

Thanks all, not just me then...
I do have a foot pump and gauge at home but, I do find I need to pop into the garage sometimes to top up. I'll keep the extentions to hand in future. Wonder if they can be adjusted out? I'll call the workshop and ask.

I use a professional quality stirrup pump at home. Get some exercise!

There is an adapter that allows you to connect ot a garage airline and after similar experiences on my F800 I always carry it.

This is what I have: https://www.nippynormans.com/f650st-f650...ressure-sensors

I use a pump that my son used for his road bike. Up right cylinder with t-bar on the top. Rarely need more than half a dozen strokes (no Bravo NO!) to top up. The garage is useless though so I use digital one. I have a garage about 400 yds away and would still rather use the manual pump at home.

The series Valves are really very short.
The Valves of the Option 719 Wheels are a bit longer.
With my option 719 sport Rims that works perfectly.
At the Time, I did not have any Problems with my old R1200RS
But I always check the Pressure at home and not at the gas Station.
Ventile.jpg - Bild entfernt (keine Rechte)

Of course, if you want to do the tires when warm, keep the engine running and use the
TPMS display: there’s a bit of a time lag, but it works.