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NiteRiderSentry Aero 260 Tail Light


Item # NRI003R

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Item # NRI003R

California Proposition 65


Cancer and Reproductive Harm -

Tech Specs
Bulbsdual LED light strips
Power SourceUSB rechargeable
Batteries Includedyes
Modes6 different modes
Lumens260 lumens
Burn Time7hrs
Mountseat post strap
Waterproofwater resistant
IncludesLED tail light, seat post mount, USB charging cable
Recommended Usecommuting
Manufacturer Warrantylifetime

Claimed Weight

Claimed weights are provided by the vendor.

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    What do you think about this product?


    >Rating: 1


    I returned this product before using it

    Impossible to turn it on. On switch does nothing, hard to press but even with table or tools it will not turn this thing on. I am a big customer of CC and this does not belong in their inventory. I am trying to return it but the return button in my order history won't work so I can't do a RMA. Huge disappointment.

    I wonder if you got a defective unit? Hopefully you tried holding the button down for a few seconds. I have had no issues with mine but the button has to be held for a couple seconds before it'll turn on.

    >Rating: 1

    Censored review is back…

    Competitive cyclist is now deleting my reviews. Previously, I left a two star review of this light. The post mount is difficult to affix and remove. I have an oblong aero Seat post. The strap broke. The light stopped shining light to the left and the right. No, it only shines directly to the rear. Most of the nightrider stuff breaks easily. Again, It stopped shining light to the sides. I might have dropped it when I was trying to attach it to the sea post. I honestly don’t remember that. I’m just trying to figure out why it stopped working. The good news is that it’s pretty bright and it shines light out of the sides, when functioning properly. But it’s not the full 270 lm. More like 180. One of the flashing features seems a little bit brighter than the rest, so that might bring it closer to the max output for one nanosecond. It doesn’t turn on to the right mode easily. You have to press and hold it for several seconds and the button is located in a weird place and hard to press. This means you’ll have to take your bike gloves off and stand next to your bike for several seconds holding down the stupid button before it comes on. Then you may have to change the mode using that same button. Really stupid UX design. Charging is an absolute nightmare. The light straps on to the seat post by way of a very flimsy piece of rubber that is very difficult to affixed to the light and strap on. It’s such a pain in the ass that if you’re tired, you’re probably just going to forget about using the light and ride with no light Rather than spend the amount of time – often over a minute – to reattach this light. And while you’re reattaching it, it’s probably going to break. Unless you have a very thin or small seat post, not an aero seat post..

    From the sounds of the review, the user had personal difficulty without warrant due to the basic simplicity of the design. Without question, this buyer has motor/operational skill difficulties, on a personal level.

    >Rating: 2

    SeatPost Strap Already Broken

    I've used it several times

    On my third ride with this light, the seat post strap broke off as I attempted to attach it to the post. The light seems fine otherwise, but I’m using two zip ties to keep it on. I don’t want a refund, but I do want new seat post straps.

    Yep. I had the same problem. I've been attached the light to the rear brake adjuster. It totally sucks there because it bounces around and adjust my brake cable tension.

    >Rating: 2

    Bad usability, ergonomics & form factor

    The light straps on to the seatpost. If you have a large aero post, it's supposed to fit. With enough effort to stretch the rubber far enough, it is possible for a strong man to affix it to the seat post. Charging is a nightmare because you don't want to take it off because that means you'll have to put it back on and that's going to take a few minutes of twisting and pulling the rubber strap to affix it to your seat post the next morning. The base of the light begins where the fixture ends, about 1cm aft of the seatpost. The light then protrudes quite far back from the seat post. If you have an aero seat post, it is going to be difficult to get it to stay in the middle. Instead, it will tend to wobble and rest at a slight angle. The usability of the button is fucking stupid. They have oversimplified the features into one button. The one button is tiny and hidden on either the top or the bottom. To turn the light on, press hold and the top and bottom of the light for three to four seconds. You won't be able to feel the button with gloves on. The one button also controls the number various of flashing features. It's easy to accidentally switch modes when turning it on. Then you have to cycle through all of the modes to get it back to the mode you had it on before. Overall, NightRider gets the following grades for this light: Usability ..... F Ergonomics ..... F Form factor ..... F

    It’s amazing how much effort this user has put forth into commenting on a bad light. You’d think they need their energy for other activities.

    >Rating: 5

    Great light!

    I've used it several times

    Super bright, easy to turn off an on without looking, battery life meets expectations! Would recommend. The strap is also easy to use and take off and on.

    >Rating: 5

    BRIGHT & Long Lasting

    I've put it through the wringer

    Agree with prior review. Love the Brightness & multi-functions although I usually stick with only a couple as I ride mostly early am & daytime. 2 Straps so It should allow to be used on a Seat Stay too. I've used on Seat post only of several bikes & have switched straps when a larger / aero shaped post is involved......strap is a bit longer than it needs to be but I have not cut. Does NOT move underway. Well made, easy re-charge. Keeps flashing - short, medium or long (century) rides.....never hurts to remember to shut off at stops even short rest stops

    >Rating: 5

    Insanely bright, incredibly visible

    I've put it through the wringer

    I got this tail light and the Lezyne Strip Drive Pro 300 for myself and my wife, who is a fledgling cyclist. I let her pick which one she wanted. I put them side by side in a dimly lit room and we observed them. I bought the Lezyne because it goes to 300 lumens - this only goes to 260 but the unique design looked really intriguing. She chose this one; it was obviously better in every way. Every single flash is 260 lumens, and the deep wedge shape means that unlike a simple strip of lights or whatever, you have this big surface area that shoots an enormous amount of light out to the sides as well. The Lezyne, on the other hand, has the usual strip configuration and only every 3rd or 4th blink gives you the big 300 lumens. Not bad at all but not as good as this. This thing is also light and compact, and attaches easily to the seatpost with a simple rubber thingy. It turns out that it's reliable, charges quickly and we have not discovered a downside to it. I might get one for myself as well, since I absolutely do not skimp on light when having to constantly deal with large numbers of hostile and/or distracted urban drivers. Brighter is better!

    Does it connect to the seat stays or just the seat post? Good review. Lots of good details