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Re: Trek CarBack radar light. Looks like Garmin has a serious competitor for the Varia. [aravilare]
I'm all over it. They didn't supply a media unit. I had to find one in store the day after release. I've since tested it extensively.

Firstly, the media reviews missed so much information I'm pretty peeved after having spent money on one only to have to find out all the finer points myself. It's the first radar to use 77GHz, that's a big change from the standard 24GHz all other radars currently use. NO review tested the extraordinary detection distance claims. No mention of the flashing pattern not changing on a detection. No mention the post mount was shitty on aero posts. No mention of the ANT+ Radar spec limitation of 196m maximum distance reporting that would/could possibly screw with head units.

All that aside, I set out to verify their claims of 240m detection distance. They'd hung their hat on this in their promo videos, every media review was parroting the same specs. HUGE if true. I couldn't. Not with an Edge and ConnectIQ app that shows vehicle distance. Putting that aside, visually I couldn't see it pick up cars any earlier than 140-150m with a rough measurement, it was definitely not 240m. After obsessing about what I screwed up with my testing overnight, the next morning I was out testing the unit side-by-side with the Bryton Gardia R300L then the Garmin Varia RTL515. I observed NO difference in the detection times/distances in what I would consider near perfect conditions. That was all captured in full 4k... along with someone flipping me off and mouthing something at me for standing on the roadside looking like a speed trap. Nice.

Road Test:


Side-by-Side Test:


I had to put in WAY too much work in an attempt to have this device prove itself. It never did. 240m is a BIG claim. BIG.

I've since had two calls with Trek (Friday and Monday). Kudos to them for answering my queries and wanting to discuss my testing protocol/conditions. They're confident in the measurements/testing they'd done, which is great. I can't replicate their results with the unit I purchased.

I'll give it a little more time.. but not much. Stay tuned. I'm in the states for a week and have the unit with me. I might pick up another while I'm here and do more testing before putting up a review in full.

Shane Miller - GPLama
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Last edited by: gplama: Apr 22, 24 23:46

Edit Log:

  • Post edited by gplama (Lightning Ridge) on Apr 22, 24 23:46