Lezyne Matrix Bike Tagger

The Lezyne Matrix Bike Tagger works well as an AirTag cubby, but does its limited concealment reduce its usefulness as a security device?

Yet another Apple AirTag holder, the Matrix sits under your bottle cage and holds your AirTag inside a reinforced plastic case, with an o-ring to keep out the elements.

It mounts under your bottle cage with two T25 security screws, 25mm long to handle the extra depth of the Bike Tagger and your cage. That's enough extra length to handle even the thickest cage I tried; if you're using something like Topeak Alt-Position Cage Mounts to move your cage up or down, then you'll need to trim them.

The screws have a tiny protrusion in the middle so you need the right matching bit to turn them, and Lezyne includes one of those. These bits are freely available (it turned out I already had one in my Wera Zyklop set), but they're an extra level of inconvenience for a thief who suspects there might be an AirTag somewhere on your bike.

Fitting your AirTag is simple. Take out the screws, twist the two halves one eighth of a turn, pop in AirTag and reverse the process to close.

The Bike Tagger sits nicely under your bottle cage and the o-ring keeps out the wet. The reinforced plastic body doesn't significantly impede the radio signals that an AirTag needs to work its magic.

My biggest misgiving about the Bike Tagger is that it's still fairly visible to a thief checking your bike for tracking devices. It's not as bad as some, because the bottle cage affords it a bit of concealment, but it's still fairly obvious that there's Something under the cage that's not part of cage or bike.

> Inside the mind of a bike thief — learn how to protect your bike

It's also on the pricey side at £20, thanks to the intricate moulding of the two interlocking halves and the o-ring. I think the extra money is worth it for the weather protection, but you could well achieve similar protection with a cheaper mount and a good slathering of silicone grease.

Rivals

Topeak has a range of AirTag holders that includes the £9.99 Cage Mount For AirTag. Like this Lezyne mount, it sits under your bottle cage, but the Lezyne has a seal and the Topeak doesn't.

Since we reviewed it, Muc-Off has fixed the radio-barrier problem with its £29.99 Tag Holder, now renamed the Secure AirTag Holder.

A mooch around eBay and Amazon turns up under-bottle AirTag holders for as little as four quid. The security bolts are chromed and not stainless and the sealing's apparently not great, but it's FOUR QUID. So I bought one and will report back when it arrives.

Conclusions

Lezyne has made a good fist of the under-bottle AirTag carrier notion here. Over the years I've learned to think like a (smarter) bike thief and if I were in the stolen bike business I think I'd find this easy to spot. Lezyne's own Matrix Air Cage is a better design when it comes to hiding an AirTag, but its seals and tidy construction make this the best under-cage AirTag mount I've seen.

Who should buy the Lezyne Matrix Bike Tagger?

If you want a high-quality way of AirTagging your bike and are happy with its limited concealment, the Lezyne Matrix Bike Tagger does the job.

Verdict

Well-designed AirTag holder, but a bit obviously a tracking device