Do you have a CyclePump or an EZAir Gauge with a straight air chuck?
Do you have difficulty fitting it between the tire valve stem and the brake rotors and/or the wheel hub?
Do you want to upgrade from a straight chuck and fit a 90 clip-on air chuck?
We now have a 90 retrofit kit that will convert your straight air chuck to a 90 clip-on locking air chuck. To perform the retrofit:
1. Cut the air hose 1″ behind the existing air chuck, using a sharp pair of scissors.
2. Slip the Oediker clamp onto the air hose, about 3″ down the hose.
3. Push the barb of the 90 chuck into the air hose until the barb is seated.
4. Slip the Oediker clamp back up the hose, over the barb.
5. Crimp the nipple of the Oediker clamp FIRMLY, using a pair of side cutters (dykes).
Your new configuration will look like this:
As with all our other air chucks, this 90 retrofit chuck uses a small locking jaw to engage the threads of the tire stem, and it has an input valve stem identical to the valve stem on your tire. Overall height of the stem is 1.80″. Sideways dimension is .75″
CLEARANCE REQUIRED BETWEEN END OF VALVE STEM AND HUB = 2.0″
To operate the chuck:
1. Press the silver lever, then press the chuck onto the tire stem
2. Release the silver lever and the chuck will lock in place on the tire stem.
3. When you’re done, simply press the silver lever and the 90 stem pops off, without any air loss. Easy, peasy, let’s hit the road!
Carlos Arce –
I bought this adapter, and unfortunately it leaks air. Not from the convection between the hose and the chuck, but the metal chuck does not fit well in the valve of the spoked wheel of my BMWGS 2017. I don’t understand because the straight chuck worked well in other bikes. Is it something to do with the valve of my bike, or is it a defective 90 degree chuck? I am not sure.
David Petersen –
Carlos – you’ve got TPMS valve stems on that bike, don’t you? Those TPMS stems are a bit different than other valve stems:
1. The length of the threads is unusually short. Because they’re so short the locking jaw of the chuck is sometimes PAST where the threads come to an end. That makes getting a good airtight seal difficult.
2. As soon as the threads end, the body of the stem swells outward. Sometimes the diameter of the solid stem is slightly larger than the opening of the air chuck. That makes it hard to get the chuck down onto the stem far enough.
We’ve put a lot of design time into trying to solve the BMW TPMS stem problem. So far there’s no elegant solution. If we make every chuck so it’s compatible with the BMW stems, then it won’t work very well on other stems. It’s not economical to make an air chuck just for the BMW…
The only work-around is to hold the chuck FIRMLY down on the valve stem as the gauge is being used. You’re compressing the o-ring inside the chuck, and that will give you an airtight seal. Or, sometimes if you rotate the chuck 90 degrees on the valve stem you can pick up another slice of thread and that will hold the chuck in place.