Niterider Sentinel 40 Taillight with Laser Lanes (Product Review and Giveaway)

17 Dec


Over the past twelve or thirteen years I’ve purchased at least a two dozen taillights—some were brighter than others, but the new Niterider Sentinel 40 Taillight is in a class all by itself. I am not one to gush over new cycling gadgets, but this taillight is the coolest product I’ve ever put on my bike! The folks at Niterider sent me one for review and now I am going to give this awesome light away to some lucky reader (see the details at the end of this article).

The Sentinel 40 has a super bright 40 lumen output (and thanks to a well-designed lens it actually looks much brighter than that). The taillight has four modes (two flashing, plus high and low steady). I never use the steady (always on) mode because a flashing light is so much easier for cars to see (plus it saves battery life). In the fastest flash mode the built-in 1000mA LiPo (lithium polymer) battery on this unit will last an amazing seven and a half hours. The charge time for this light is only four hours and uses a USB cable which is included with the light. As for size, the light is approximately 3.5 inches tall, 1.5 inches wide and 1.5 inches deep. For the “weight weenies” among us, it weighs a mere 2.5 ounces (73g).

niterider-sentinel-40I’ve saved the coolest feature for last: the Sentinel 40 has Laser Lanes which project two parallel bright red lines onto the pavement to give you your own personal bike lane. I honestly don’t know how far back cars can see this feature at highway speeds, but in town it a obviously helps. One warning: you are going to have to be ready at every stoplight to tell motorists about the lights since it seems like everyone is curious about them. Did I mention how cool these Laser Lanes look? By the way, the Laser Lane lights are real lasers, so don’t look directly into them.

Like most bicycle taillights, this unit can be mounted to either the back of most saddlebags or attached to your seatpost with the included clamp.  While the clamp seems more robust (sturdy) than most clamps, I prefer to mount mine on the saddlebag so the light will sit up higher on the bike. I used to lose a couple of taillights every year because they would fly off my bike the first time I hit a big bump on the road (but I wouldn’t notice it until I got home). The simple solution is to mount your taillight on the saddlebag as usual, then wrap a zip tie (cable tie) around your light so it extends behind the clamp (I haven’t lost one since I’ve started doing this).

The Niterider Sentinel 40 Taillight retails for $49.99 and is available at your local bike shop or online for a couple dollars less (but be nice and buy this from your local bike shop).

I never keep the products that are sent to me for review, but I am going to really hate giving up this taillight! To enter the contest for the Niterider Sentinel 40 Taillight all you have to do is pick a number between 1,000 and 1,500 and enter it in the comment section below (you don’t actually have to make a comment). The contest ends at midnight (CST) on Monday, December 28, 2015. After the contest closes I will use a random number generator to pick the winning number. If no one guesses the exact number the person with the number closest to, but not over, the winning number will get this slightly used taillight. In case two or more people chose the same number the first person to pick the number will be the winner. This contest is for U.S. residents only and only one entry per household allowed. When the contest is over I will publish the results in the comments section of this article. I will send this product to the winner via U.S. Mail.


Tags: , , , , ,

68 responses to “Niterider Sentinel 40 Taillight with Laser Lanes (Product Review and Giveaway)

  1. billgncs

    December 17, 2015 at 12:33 AM

    great light – especially when it gets dark so early!

    • All Seasons Cyclist

      December 17, 2015 at 12:48 AM

      Aside from the “coolness” factor of this light, it is the brightest taillight I have ever used. At at this time of the year I need a taillight on just about every ride!

  2. Randy

    December 17, 2015 at 1:43 AM

    I will ride again next year, had to cut down 6 trees, rebuild the fence and had the roof, siding and windows replaced this year. My guess is 1359.

    • All Seasons Cyclist

      December 17, 2015 at 4:43 PM

      I was wondering about you — I didn’t see you out on the road all year!

  3. Ty

    December 17, 2015 at 2:14 AM

    Cool light. Some European company has a headlight that projects a lane in front.

    1331 is my number.


  4. timscyclingblog

    December 17, 2015 at 2:43 AM

    Cable ties, hammer, gaffer tape and super glue are the main tools for fixing anything. For Computer problems, the hammer every time.
    I always have two rear lights, one seat post mounted and one rack mounted.
    Shame I’m not in the US 😦

    • All Seasons Cyclist

      December 17, 2015 at 4:44 PM

      I often use two taillights as well (one on the saddlebag and one on my helmet).

  5. cyclerist

    December 17, 2015 at 3:10 AM

    Thanks for the review, it’ll help me decide which next light to buy 🙂

  6. bgddyjim

    December 17, 2015 at 3:33 AM

    My number is 1,256.

    Lately, I’ve enjoyed mounting my taillight on the left seat stay on the Venge. Cars seem to see the light better and it’s a better place for pace line cycling. This also works better with aero seat posts.

  7. Lisa Miller

    December 17, 2015 at 4:18 AM


    I really love the idea of projecting your own lane lines!

  8. Sue Edwards

    December 17, 2015 at 4:45 AM

    My guess is 1111. I wonder if motorists see and use the laser “lane”?

  9. elisariva

    December 17, 2015 at 5:04 AM

    Good to see you back! 1239

  10. kperry

    December 17, 2015 at 5:24 AM

    1333. For us short riders who don’t have a lot of seat post showing, does this also mount on a stay?

    • All Seasons Cyclist

      December 17, 2015 at 4:45 PM

      Yes, there is a very sturdy mount that is highly adjustable.

  11. Judy Crankshaw

    December 17, 2015 at 6:19 AM


    Nothing beats a good taillight!

  12. sevencyclist

    December 17, 2015 at 6:30 AM

    Ooh, laser lanes. Might get it just for that.

  13. onecarexperience

    December 17, 2015 at 6:34 AM

    This looks like a great taillight! Let’s go with 1421. Very cool of you to give this away.

  14. Bill

    December 17, 2015 at 7:00 AM

    Don’t know if my comment registered the first time I tried. My number is 1492. Thanks for the great review and helpful blog!

  15. ragtimecyclist

    December 17, 2015 at 7:02 AM

    This look impressive. I’ve just got myself a Moon Comet which is fantastically bright and, crucially, is USB charged. Never going back to batteries!

  16. Bob Quinn

    December 17, 2015 at 7:54 AM


  17. JD Blom

    December 17, 2015 at 8:46 AM


  18. eenermai

    December 17, 2015 at 8:48 AM


  19. Anthony

    December 17, 2015 at 8:53 AM

    The laser lanes is a really cool option, and at 40 lumens, it can be seen even is very low light.
    My number is

  20. joboo1967

    December 17, 2015 at 9:59 AM


  21. ericritter65

    December 17, 2015 at 10:27 AM

    maybe this will get me out later in the season! my guess is 1299

  22. Jeff Katzer

    December 17, 2015 at 10:28 AM

    1222… Yeah, pick me!

  23. Chris Buchanan

    December 17, 2015 at 11:27 AM


  24. swimbikeread

    December 17, 2015 at 11:44 AM

    1311 I’ve been looking into buying this type of light for my commute!

  25. the drunken cyclist

    December 17, 2015 at 11:51 AM


  26. Marion Bailey

    December 17, 2015 at 11:59 AM

    My number is 1207

  27. Mike Carmain

    December 17, 2015 at 12:32 PM

    My guess is 1157.

  28. Jason S.

    December 17, 2015 at 1:08 PM

    1349… Thanks for the review brother, hopefully I don’t have to buy this one. I bought the Planet Bike one you reviewed = )

  29. Shawn Olesewski

    December 17, 2015 at 1:48 PM

    624 is my guess. Cheers!

  30. Dave Evans

    December 17, 2015 at 8:13 PM


  31. Robert joly

    December 17, 2015 at 8:48 PM


  32. sedge808

    December 17, 2015 at 9:14 PM

    fab photo

  33. Dennis

    December 18, 2015 at 6:29 AM

    Sounds like a great light — 1322

  34. Sandra

    December 18, 2015 at 7:09 AM

    So glad you are back and going strong! 🙂


  35. Sandra

    December 18, 2015 at 7:11 AM

    Never mind. Someone chose that number

    I will say 1455

  36. Ian

    December 18, 2015 at 12:15 PM


  37. Scott Dahlquist

    December 18, 2015 at 12:59 PM


  38. hogsmill

    December 19, 2015 at 4:35 AM


  39. thehomeschoolingdoctor

    December 19, 2015 at 5:36 AM

    As I’m a di-wheel deadbeat for about 24 months now, I will not submit a number. I will dream about the day I get back on the bike and the day that I am di-hard enough to ride in the winter and be worthy of a light. Hope the family is content and secure.–Terri

  40. spoonfuloflentils

    December 20, 2015 at 7:27 AM


  41. Jeep

    December 20, 2015 at 6:40 PM


  42. deagukat

    December 21, 2015 at 3:06 PM

    1498. I have read about this a couple of times now.

  43. Dan

    December 21, 2015 at 5:00 PM

    Looks like an interesting light!

  44. collegeinnovator

    December 21, 2015 at 6:09 PM


  45. bribikes

    December 22, 2015 at 7:52 AM

    Laser lanes! How cool is that?

  46. Pinkie B

    December 22, 2015 at 9:07 PM


  47. Michael Pinker

    December 23, 2015 at 8:22 AM

    Your good advice is invaluable. 1425

  48. Eric Overton

    December 23, 2015 at 8:45 AM


  49. Don Galleto

    December 23, 2015 at 9:47 AM


  50. barrentoblessed

    December 23, 2015 at 8:03 PM

    Hoping to ride in 2016! I’m on the mend following my back injury and tearing of the hamstring. No fun. I guess 1308

  51. liberalhistorian

    December 24, 2015 at 8:00 AM


    Merry Christmas everyone.

  52. Ed

    December 24, 2015 at 10:28 AM

    Happy Holidays!

    #1158 for me!

  53. Norbert Kraft

    December 24, 2015 at 12:22 PM

    Amazing gadget !! If I don’t win this (very unlikely) I will be buying one right away .. even so; I think I will pony up for a spare. Love the laser feature.. Can I vaporize an angry motorist with it?

    # 647

  54. Eric Welsh

    December 25, 2015 at 7:58 PM

    1050. Forgot to put one in my Christmas stocking!

  55. Jason

    December 26, 2015 at 8:44 AM


  56. Karen

    December 26, 2015 at 9:01 AM


  57. Norbert Kraft

    December 26, 2015 at 9:40 AM

    BTW, I’ve been using a flashing rear light during the day and have definitely noticed motorists giving me a wider berth and generally being more cautious.!


  58. ddsheehan2013

    December 26, 2015 at 10:46 AM

    1244 – I’m also a veteran of many rear lights. I tend to have some on steady and one flashing in the city and only steady out of town. In any case, having my lane delineated as I ride would be an good thing.

  59. Andy S

    December 27, 2015 at 10:44 PM

    I’d like to try one, as I’ve had my doubts about how well they can be seen. 1006.

  60. Edward Nino

    December 28, 2015 at 2:39 AM

    Anything for more visibility is a good idea, the cellphone makes bike riding a lot less safe.

    • Norbert Kraft

      December 28, 2015 at 1:25 PM

      Agreed about cellphones..However, as retribution, cameras on bikes (phone or GoPro) are great for evidence against bad drivers.. providing you survive.


  61. ca

    December 28, 2015 at 10:30 PM


  62. All Seasons Cyclist

    December 29, 2015 at 3:41 PM

    THIS CONTEST IS NOW CLOSED!!! The winning number was 1250 and I will announce the winner in my next post.


Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

Israel's Good Name

Voyages and Experiences in Israel


...finding perfection in imperfection daily.


Cycling, pro cycling, and other stories

Ferrell's Travel Blog

Commenting on biblical studies, archaeology, travel and photography


Steve Wolfgang's view of the world from suburban Chicago -- or wherever he may be on any given day

It's A Marathon AND A Sprint

And a 10K and a 200 Mile Bike Ride and an Obstacle Race and Anything Else We Find!

Shannon E. Williams

Gather. Discover. Cultivate.

the drunken cyclist

I have three passions: wine, cycling, travel, family, and math.

Long Distance Cycling Cleveland

We host a series of long distance preparation rides each weekend from January - June in the Cleveland, Ohio area


healthy tasty food that I love to make and eat and share


Diabetes, Cancer Survivor, Cycling, Photographer, Exercise, College Parent, Twins, Boy Scout Leader, Life

Travel Tales of Life

Never Too Old To Explore

Fatbike Brigade

Exploring the world on fatbikes


What happens when a medical doctor becomes a stay-at-home, homeschooling mom

Raising Jordans

early and special education


Running and Laughing through the Golden State


Inspiring Your Outdoor Adventures

Scott Silverii Ministries

Putting The Hero Back In Action


Always Thinking, Reading About, and Up To Something

Oregon Coast Cyclist

Adventures of a cyclist living in Lincoln City Oregon

A Promise to Dad

"You don't have anything if you don't have your health"

The Chatter Blog

Living: All Day Every Day: Then Chattering About It

chasing mailboxes

one good thing. washington d.c.

Fit Recovery

Stay Clean Get Fit

Nancy Loderick's Blog

Musings on technology, marketing and life.

MTB blog from super happy Tokyo girl!

~マウンテンバイク初心者女子のチャリ日記~ Play hard, Ride tough, Eat a LOT then you got nothing to worry about!


il blog di aerodinamica

Move and Be Well

Empowering others to find their balance of movement, nourishment, and self-care.

Dr. Maddy Day

Let's unpack your nutritional and emotional baggage.

Sip, clip, and go!

Cycling, off and on the road, in Western Mass

She's Losing It!

Fitness Book for Moms

Survival Bros by Cameron McKirdy


Muddy Mommy

Adventures in Mud Racing, Marathons, & being a Mommy!

wife. mother. awesome girl.

just enough ahead of the curve to not be off the road completely

A sport-loving chiropractor's blog about adventures in health, fitness, and parenthood.


Running Toward: Health, Wellness & PEACE ............................................ Running From: Insanity, Screaming Children, Housework & a Big Ass


Seizing life's joys and challenges physically, mentally, and emotionally.

arctic-cycler goes global.

%d bloggers like this: