Tyrewiz is one of those things that seems really super geeky, unnecessary, and overpriced, but it turns out to be a lot more practical than I expected.
First, while you can use your phone, I strongly recommend using these with a Garmin cyclecomputer that supports the Tyrewiz ConnectIQ app, then configure your display so you can have your tire pressures displayed in real time. I don't think these are half as useful without the cyclecomputer display field, so definitely figure out if your cyclecomputer is up to it.
Installation is a little counterintuitive due to spoke interference on 32 spoke wheels. Save yourself a bit of grief and watch a couple installation videos before attempting an install. It's not hard, but you do need to do things a certain way.
You'll get tire pressures for your front and rear tire with updates about once every few seconds. You can set a target pressure and a tolerance. The display field will highlight the tire pressure number for either tire drifting out of tolerance, so you'll know quickly if something is amiss.
- I'm able to keep my riding pressure much more consistent and (obviously) detect slow leaks.
- It's easier to learn subtle relationships between tire pressure and performance.
- You can monitor how much your tire pressure changes as you ride in the hot sun and climb or descend. I've seen my Minions climb by as much as 3psi, which was pretty stunning.
- The Connect IQ app is pretty opaque about how it works. You can switch bikes at any time without hassle, but I'm not certain what would happen if another user with Tyrewiz is within range. Could someone else's tire pressure obfuscate yours in the display field? Maybe, maybe not.
Thank you for your feedback.