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At present, to my knowledge thats only Garmin thats implemented it.

These 59 individual front and rear lights connect via ANT to supported head units to automatically turn on when you start a ride, and turn off when you end a ride.

You can also control functionality, like light modes, from the head unit itself.

The initial iteration of the Bontrager Flare RT and Ion RT was actually quite good and they even had a nifty remote control (still do if you want it) to control the lights.

But these days most riders will likely be using their Garmin bike computers to do so.

In essence, its more about vehicles seeing you than you having the path in front of you lit-up like a stadium.

For those living in cities, its perfect whereas for those living on farm roadsnot so much (as I found out).

Theyre also perfect as daytime running lights on the bike, since theyre so tiny youd barely notice them weight-wise or size-wise.

Trek Speed Concept Di2 Series Lights Are

The Pro series lights are also connected, and are quite a bit beefier in terms of size and lumen throw-down (an official term, obviously).

Maybe if theres interest Ill also do something on the Pro lights down the (well-lit) road.

As usual, once I wrap things up Ill shoot them all back to Bontrager.

See, the company actually renamed the product the same thing an Apple-like ode, without any clear generational or year identifier.

Got it Good, lets begin unboxing (because the box is actually rather clever).

Trek Speed Concept Di2 Full 5 Over

In my case, this is a twofer pack, which saves you a full 5 over the cost of buying them individually.

That gets you three 1.50 Costco hotdogs soda combosjust sayin.

The rear one is tapered a bit so that it counteracts the slant of your seat post to keep the light level.

But, that doesnt mean you can only use them in a connected state.

You can use them just fine sans-connection (mostly, as Ill explain).

But because you have to eat your vegetables before desert, well start with the boring way, which is just double-pressing the button on the top of the lights (as the manual notes: just like a mouse double-click).

Theres only a single button, though you can do some ultra-long hold presses to get things reset and such.

This gets you an additional 30 minutes of battery time beyond the stated times above.

In case of all Bontrager RT lights, they all support ANT connectivity using the ANT lighting profile.

Trek Speed Concept Di2 Manual