Topeak Shuttle Gauge with Case, featuring an Air Pressure Dial Review

Worked great for filling a rear Sachs shock with nitrogen. Much cheaper than some other devices but seems to work well. The only small point is that the dial could be a bit bigger, but that doesn't affect the functionality.

Less than half the price of Bilstein's lossless injection tool and works well. All parts of this tool pivot to facilitate alignment of the gauge and compressor line when pressurizing a shock already installed on the vehicle. The priming knob is progressive enough to be useful, releasing a small amount of pressure at a time. The soft case is a nice touch.

Used on 4 of my King shock absorbers only one didn't leak. Others leaked up to 20psi when spinning (it was a reproducible amount for each hit, and it didn't matter how fast I tried to spin it). Perhaps this is suitable for tires or other applications where you have a large volume of gas and that amount of leakage is acceptable. But in that case you could probably still use a cheap dipstick.

The adapter does not fit directly onto the tire nipple. Screw the adapter directly into the Shuttle Schrader hitch. Make sure it is tight as you can feel the resistance of the rubber gasket inside. Then carefully screw onto the Presta inner tube. If you did everything correctly, you will see the pressure gauge reading move to the current tire pressure. Add air from a hand pump connected to the Shuttle Schrader fitting.

When it comes to editing, the accuracy of gauges depends more on repeatability than the numbers themselves. Sensors can always be calibrated. When it comes to punches, actual pressure means nothing. Once you find your sweet spot (slack), that's the pressure you want to hold. That's the caliber for it. It's right every time. I modified this to work with my nitrogen system and it's great. The exhaust valve makes it very easy to control. They can deflate very quickly, or just a few pounds. This…

Build quality seems solid. Both the gauge and fitting rotate 90 degrees to allow for use in many locations. I bought this with the intention of using it in place of a dedicated shock pump. It didn't work as intended with my Rockshox Recon Silver TK shock. Even with the Schrader fitting fully screwed in, he didn't press the valve to measure pressure or bleed air. The problem was more in the shock than with this sensor. For this application I could only fill out. It worked on my Cane Creek Double

The reviewer who said it doesn't work with Presta valves is wrong. It comes with a Presta adapter and will inflate the Presta tires. BUT you cannot use the button to deflate Presta tires. Here's why: If the pin in the part that screws onto the valve stem was long enough to push on the top of the Presta valve, you wouldn't be able to unscrew it fast enough to maintain proper tire pressure. So you slowly add enough air to get the desired pressure and then stop. When you unscrew the shuttle or…