Quarq Tyrewiz Air Pressure Sensors For Presta Valve: Black

Product Information

After which, you’ll go ahead and pump up the tube like you normally would. The top of the TyreWiz is identical to the valve stem that you just removed, so it’s just like normal there. Note that you don’t utilize your old valve stem in this design. Obviously, you probably want to keep it in your toolbox somewhere in case you remove the TyreWiz devices (especially if you have fancier tubes that cost a bunch). While I can’t speak to the accuracy of my bike pump (some sort of Specialized model that says ‘Airtool’ on it), the two matched almost perfectly, within 1PSI, the entire time. I should also note that Quarq isn’t the first looking at this space, in fact, 4 years ago I showed a prototype at Eurobike from Lightweight. And last year at Eurobike, Hutchinson also showed a prototype. Neither though have brought a product to market that’s ready to buy and about to ship. The battery is a CR1632 battery that they claim will last about 300 hours of use. Also, it’s IPX7 waterproofed (so 30 minutes at 1-meter depth), and the weight is 10g each. Use it for every ride to find the perfect combination of tire, wheel, and pressure in changing terrain and conditions.

For those that say there isn’t a market, you’re in the wrong discipline. On my enduro bike I perseverate even a single PSI and change my pressure based on the terrain/course. I just installed a CushCore trying to push that lower limit downward (by improving compliance/traction). If you go too low you risk burping/rolling your tire or damaging your wheel. Too high and you’re wasting traction and off the trail. The margin? Probably a few PSI. The TyreWiz units are a snap to install. Simply unthread the core from your valve stem (I used it on a set of tubeless road wheels) and thread on the TireWiz in its place, positioning it inline with the spokes.

I was concerned that the valves might clog with sealant in a tubeless set-up, but haven’t had any such issues so far. The company says it shouldn’t happen, but even if it does, it should just be a case of cleaning them out. Each TireWiz threads in to the valve core and transmits real-time data on tire pressure in Ant+ or Bluetooth to an attendant smartphone app for both Android and iOS (ready in June 2018) or newer cycling computers from Garmin, with other brands likely to follow. Through the app, TyreWiz suggests tire pressure based on wheel size (700c, 27.5/650b, or 26-inch) and tire width, plus user weight when dressed for riding. Additionally, the app acts as a digital pressure gauge. As you inflate your tires, an image of a tire on your screen turns from red to green so you know exactly when to stop pumping. Next, you can configure your weight and tire size, which will then give you suggested tire pressures. Of course, tire pressure is a super religious thing like tater tots vs onion rings – so this is just a suggestion, not a mandate. You can override it as you see fit via the app, specifying the ranges you want. These ranges then allow the data field, later on, to show when you’re above/below what you’ve specified. Above is some imagery from Quarq showing that, but I’ll capture my own photo goodness tomorrow when I steal someone’s mountain bike at Sea Otter. Wrap-up:

Works with any tire that uses a removable Presta valve core: both tube and tubeless, and tires with anti-flat sealant. The actual ID of the sensor is etched into the side of the sensor, making it super easy to figure out which is which. Airspy’s Garmin Data field doesn’t store data in the .fit file. So if you want to be able to analyze how different tire pressure affects power output, for example, you have to get Tyrewiz. When asking support about it, I got a bullshit answer that it’s hard to get Garmin to allow them to write anything to the .fit file. When hundreds of hobby-developers can make Connect IQ apps and data fields that stores data, it can’t be very hard for a big company, unless their developers are completely incompetent. (My opinion/thoughts.) While the TyreWiz app suggests tyre pressures based on your weight and tyre dimensions, I didn’t find this particularly useful for mountain biking. It suggests just 14/15psi for an 85kg rider running 29×2.5in tyres — about 10psi short of what I’d recommend.Airspy is slightly bulkier, and double the weight (maybe a little more, since you remove the valve core when installing Tyrewiz). On the positive, Airlspy attaches to a spoke to keep it securely in place. They call it “theft protection”, but that’s obviously a load of mumbo-jumbo. Now, behind the scenes, it’s also recording your tire pressure into the .FIT file, so that it shows up later on Garmin Connect, as well as for 3rd parties to access. The earlier beta Connect IQ apps I was using didn’t have the code to write to the .FIT file, so I can’t show you that today. I got the updated beta app about the exact same time I boarded the plane to the US on Monday. But the good news is I’ll be giving these a whirl mountain biking over the next few days at Sea Otter, so I’ll share some data there and post it here. Also note that there is an ANT+ Tire Pressure device profile in the works, making it such that this kind of data can be better standardized. I would say 100% of their target group have: “taking out ugly reflectors from your wheels and bike”, as step one of making a new bike ready to ride and Quarq put something way uglier in their place…

Today Quarq announced their latest creation – the TyreWiz, which monitors your tire pressure on your bike. These small sensors attach to Presta tire values, so basically most bike tires that this target market would care about (mountain, road, fat bikes). From there the unit then transmits your tire pressure second by second to your head unit, be it a Garmin device or a Wahoo ELEMNT/BOLT, or even just your phone. The Quarq TyreWiz carries an IP67 waterproof rating, which means that – while I haven’t gone so far as to deliberately blast each of them with a jet-wash — puddles, streams and normal bike cleaning are no problem. Weighing 10g each, the sensors carry a negligible weight penalty. I’ve had no issues when riding through rough terrain either.Finance is subject to application, financial circumstances and borrowing history. Performance Cycling Limited FRN: 720557 trading as Tredz are authorised and regulated by the Financial Conduct Authority. We are a credit broker not a lender – credit is subject to status and affordability and is provided by Mitsubishi HC Capital UK PLC. Terms & Conditions Apply. Tyrewiz has a led that will tell you if you’re within target pressure without looking at your Garmin or phone. The led supposedly turns off when the tire rotates. And of course when the unit goes to sleep after a few minutes without movement. Your tires are the only thing connecting you to the road or trail, and having optimal tire pressure can have more impact on ride comfort than both frame and wheel choice combined. But finding the right tire pressure requires trial and error. TyreWiz is the first-of-its-kind tire pressure sensor for riders of mountain bikes and road bikes, taking the guesswork out of finding that optimal tire pressure. You can set the target pressure range in the Tyrewiz app. For Airspy, it’s 15 and 25% over/under (15% is orange, 25% is red in the app). Tyrewiz also will show in the Garmin data field if it’s outside range. TyreWiz is durable, waterproof, powered by a long-lasting user-replaceable coin cell battery, and adds just 10 grams. The unit is compatible with removable Presta core valves in tube or tubeless tires, including those with sealant.