Hands-on: Quarq TyreWiz Tire Pressure Sensor 

Stop being so cool, 2 videos in a day. I dont have enought money to buy everything...

I finally got a pair of these which I really wanted when I first saw this review. For MTB a 1 psi difference is 5% at 20psi whereas in a road bike a 1% psi difference at 100 is only a 1% difference. I like the quick glance to see if I need to adjust my tire pressure pre-ride. It is easy to dial in your exact pressure with what acts like an accurate digital gauge (I use the ShockWiz as a digital pressure gauge for my fork and shock).

When I first got into cycling I got a flat about 3 months in... at that point I could maintain about 15mph with no effort and all of a sudden I was huffin' and a puffin' going 9-10mph. I seriously thought I was having a heart attack or something. Pulled over to rest/die and then realized I had a flat. I will never forget that. Anyway, I agree these are cool and maybe even a good idea for general riding but overpriced. Yet I just got them on Amazon since the Karoo started supporting them a few weeks ago :)

It be great mtb and CX when dialing in your tyre pressure.

What about wheel balance ? Have you tried to spin the wheel at high speed on a stand to see if the wheel makes the bike shaking ?

Ray, does Quark say anything about using them on tubeless with sealant? Seems like the diaphragm or what ever the sensor is used could be sensitive to getting gunked up. Regardless do they seem like they would get clogged up easily and either easy/hard to clean out?

I'd say it would affect the wheel balance too

Not all presta stems have removable cores (core, not the stem is what you remove). I've only got a few that do. And you are right the price point is too high, but it will come down. Less than $200 gets you 4 tire sensors and a display unit for car tires. For tubeless they could put the works inside the tire, which is how oem auto ones are and would be much cleaner, but might not work with sealant.

The size is hilarious!! Why do they use 2032 batteries instead of smaller format coin cells?

Another awesome video and an interesting product. But I'll toss my next $200 to my power meter jar.

It could also give me info about how do my tyre pressure suiting the course

It might trow the wheel balance off. Can steal watts :).

What I would like it to do is have a function that would release all the air from the tire. For the times you are hanging on for dear life and need to take a break. Tap the data field and the device flats the tire. Presto, instant excuse / break.

Doctors, Accountants and Lawyers are rejoicing everywhere!!!!

Neat! Ultimately I think this is more for the serious people - and I'm sure the aero and weight weenies will be up in the "air" about how much it sticks out - would be awesome to have the data during an Ironman like you said, but it'll still always be a tough decision of adding rotational mass/drag. Maybe someday they can get this down enough to essentially have it just be a valve extender? After all those are often needed for aero wheels anyways - would be awesome if it could fit in there as a valve extender seamlessly. Perhaps that can be done on some wheels even with the current shape? Even for those who are that picky about weight/aero - having the data for testing rolling resistance effects during training could be pretty huge. Like REALLY huge, actually. Certainly that hardcore audience has spent more on less gains... I do agree with you on the price though - hopefully that'll come down over time too because this looks really neat to me as a data junkie.

Cool gizmo. Dono why I missed this video when it came out... Quick one. Why not remove the stem from the spare inner tube(s)?? That way you can just move the wizz to that, if you have a flat. You need to unscrew it anyway... 2 questions. How do they like the cold from a co2 pump??? And what about sealant, like Doc Blue? For tubeless or just protection.

The price is absurd for these tire monitors. But the sweater is cool. What brand is it?

Hey Ray, just a thought after watching this video. You made no mention of the Quarq Shockwiz that you can not only Buy, but many people will let you rent it to hello get your air suspension setup ok your Mountain Bike. I check Quarq's website and it says that it will make recommendations to tire pressure. Which makes a massive difference in mtbing, and write a significant one in road cycling as well. I wonder if this is not the actual focus of the product and the talk time telemetry a nice benefit? I wonder how good the recommendations are. Apparently the Shockwiz very good. Also wonder if it would help people going to road tubeless, or Road Plus tubeless even, from old school 23c clinchers and tubes find their new tire pressure much faster? That would make it a tuning tool and not just a convenient monitor, and maybe hello justify the price tag?

Hey Ray! nice sweater you go there. Do you remember the name and where you got it from? Thanks in advance

Wouldn't this throw off the wheel balance from having a weight on only one side?

Toto fakt potrebujem!

Neat feature. Really is...But for $199, even at $99 to add a cyclops thingy that takes away from a clean look on my sweet wheels not so good. Like most, before all my rides is felt with my hands tire hardness and added air when I needed it. Done. Prepare my saddle bag with CO2, spare tube and a single plastic tire lever and GTG. Some things in cycling just don’t need changing. Less is more. Smooth is fast. It’s about fitness over lighter bikes.

$200.... I think i'd rather just check and see if I have a flat. Cool tech but definitely not for most people.

I bought one and I get psi data after every ride. How do I use it to fine tune the optimal pressure? Sram advertises that over time it will recommend a pressure based on your personal data. I dont see this anywhere

It could be inside deepsection wheel's rim, not neat enought. I'd use that on an mtb so that in case of a puncture I could easily open the valve to put an extra sealant.

Random comment....who makes the hoody? Cheers

all the wheel imbalance comments.... lol, they add 6 grams. i'd love a set of these for my fatbike, where a half-psi makes a huge difference in performance for any given snow condition.

What does tubeless sealant do to them?

Probably not for everyone but could imagine it being useful to pros maybe. If it had an alarm for when pressure drops below a certain point, they'd knownthey had a flat sooner so could get their arm up for a new wheel quicker and save some time. Also think this would be great for MTB riders as pressure plays a bigger part formthem than road riders.

Anyone have any experience with these on the new edge 530/830?

I would definitely buy this at £100 but not £200 looks great.

"April Fools" is on the first day of April...

How did we survive without this product. When are they releasing their snake oil product?

Tire will be really unbalanced...... should put on and turn the wheel fast to see how bad the wobble/bound is.

Disappointing none of the questions in the comments were answered.

If low pressure can leave you doubting, perhaps thinking your lower speed may account for it, it's ironic that being TIREd can do the same. Well...if you're in good health you can increase your cycling and solve some of this issue. Come to think of it, being reTIREd leaves you the extra time to increase your cycling. I know, TIREsome humor....

200 bucks? That's insane. This device doesn't make me faster, safer, cooler or anything. Might consider it for 20 bucks and if it were twice as small. But hey, I'm Dutch and cheap, so I'm probably not their focus group.

I would buy one if it was like 50 bucks just for fun.

recently got 4 of these...for the new tires on my truck. will cost you $49 per sensor at the tire shop but i got mine off ebay at $49.95/4. that's bout 12.50/sensor, they are OEM and communicate automatically with my vehicle. can we say overpriced...just wait for another similar product at 29.99/wheel. great idea, bad marketing.

Whilst I love innovation... I genuinely can't see a practical purpose to this other than a slow leak. It seems similar to Garmin's running dynamics... It's nice stuff to know, but what do you do with it? If your tire pressure is slightly lower on a cold day... Is that bad? I don't see that this does much more than my pump, which tells me the sensor. If I get home, I can put it on again and see how much its dropped. And $200... No. Sorry. No.

You're right, it's not worth $199. Maybe $99, but I don't need to know this that badly.

200$ x 2 = 400$ amazing :-)))

It's a no from me ... I'm out

Complete nonsense. Just produces a lot of toxic (battery) waste. My thumb is my tire pressure sensor.