How do you usually check your tire pressure? Do you go by feel, relying on those finely calibrated meat paws, or do you pull out a trusty gauge in order to make sure you've got exactly the right amount of air in there? Topeak's Shuttle Gauge Digital is aimed at the latter crowd, with a digital readout capable of measuring tire (or shock) pressure down to .5 psi. A swiveling head makes it easy to read the LCD screen, and there's a bleed valve on the back side to let off any excess air pressure without needing to remove the gauge.
The Shuttle Gauge can also be attached to a pump, whether that's to provide more accuracy than the dial-type gauges typically found on floor pumps, or to impress your friends with your trailside tire inflation precision.
Shuttle Gauge Digital Details
• Measure pressures up to 300 psi / 20.7 bar
• Rotatable head
• Can be attached to floor or hand pump
• Auto-off function
• Weight: 102 grams
• MSRP: $64.95 USD
Capable of measuring up to 300 psi / 20.7 bar, and powered by one CR2032 battery, the Shuttle Gauge Digital retails for $64.95 USD. Performance
Operating the Shuttle Gauge is about as straightforward as it gets – push it over the valve, rotate the aluminum lever to lock it into place, and bingo, you now know how much pressure is in your tire. Too much air? There's a small button on the backside of the device to bleed off any excess.
Using the gauge with a pump is a little more involved, but it's still not exactly complicated – one side fits into the pump, and the other receives the tire valve. The male end of the gauge, the portion that goes into a pump, can either be set up to simulate a Presta or Shrader valve via the included adapter. It'll depend on the pump you're using, but I found the fit was more secure in the Shrader configuration – the wider valve helped reduce the amount of wobbliness.
In all honesty, I found attaching the gauge to a pump more hassle than it was worth. I preferred to inflate the tire, remove the pump, and then check the pressure with the gauge. Having the double-stack of gauge and pump head seemed unnecessarily complicated to me.Topeak Shuttle Gauge vs Smart Gauge D2
For the last month or so I've been switching back and forth between Topeak's Smart Gauge D2, which I already had in my toolbox, and the Shuttle Gauge, in order to see which one I preferred. Here's the quick rundown: Ergonomics / Operation:
Ask any mechanic – the way a tool fits and feels in your hand is a crucial detail, especially if it's something you'll be using nearly every day. The rectangular shape of the Shuttle Gauge is a little odd, especially the depression where the battery sits – at first I thought that there was a part missing, but that's just how it's designed. It doesn't feel as natural in my hand as the Smart Gauge, and the addition of the locking mechanism means that it takes two hands to operate.
The Smart Gauge emits an audible “beep” once the tire pressure has been read, something the Shuttle Gauge doesn't do. In addition, the Smart Gauge's bleed valve is in a better location, and it can be quickly switched between Shrader and Presta valves with the flick of a lever. Point: Smart GaugeAccuracy:
The key with any gauge is to use the same one – switching back and forth between different models can result in different readings. The Shuttle Gauge gets the point here due to the fact that it displays results in half-pound increments, which could be useful for extra-obsessive riders, or fat bikers who run extremely low pressures. Price:
The Shuttle Gauge can be attached to a pump, something that's not possible with the Smart Gauge, but that also raises the price by nearly $20. If that's not a feature you're interested in, the Smart Gauge is the way to go. Pinkbike's Take