Trek  Flare RT Rear Bike Light

$70.00
Members get an est. $7.00 in rewards

Smaller and more powerful than its predecessor, the Trek Flare RT rear bike light helps you stay seen on your ride. Its distinctive flash, focus and range can be seen up to 2 km away in daylight.

Color: Black
Quantity
Shipping restrictions apply.

Members get an estimated $7.00 (10%) back on this item as a part of your annual .

Members get an estimated $7.00 (10%) back on this item as a part of your annual .
To buy,  sign in as an REI Co-op Member or join now.

Features

  • Interruptive flash pattern produces light up to 90 lumens; specifically designed focus, flash and range provide optimal daytime visibility
  • Integrated light sensor automatically adjusts the brightness to suit your environment
  • Confidently ride through wet conditions with IPX7-rated waterproofing
  • Battery save mode provides 30 minutes of additional runtime when battery life reaches 5%
  • Connect with Garmin and Bontrager ANT+ devices for always on, battery status and control
  • Package include includes Flare RT light, rear Quick Connect bracket and micro-USB charging cable

Imported.

View all Trek Rear Bike Lights

Technical Specs

Best Use

Cycling

Bulb Type

LED

Number of Bulbs

1

Max Light Output (Lumens)

90 lumens

Taillight Mounting

Seat

Rechargeability

Rechargeable

Charge Time

2 hours

Batteries

420 Li-Poly

Integrated Battery

Yes

Battery Life on High

4.5 hours

Battery Life on Low

13.5 hours

Battery Life Flashing

15 hours

Weight

1.4 ounces

Reviews

12 reviews with an average rating of 4.5 out of 5 stars

80% 4 of 5 reviewers recommended

Write a Review

Adding a review will require a valid email for verification

Average Energy Efficiency

Short battery lifeExtended battery life

Customer Images

Kind1
Age:55–64
Rated 4.0 out of 5 stars
1 year ago

Versatility and bright

Terrific in high strobe mode for increased safety day or night. Recommend it ! I mounted one to a seat pouch using Bontragers assembly ( see pictures) .simply melt a small hole with a hot nail and use a small fender washers.

Age:55–64
Gil
Location:Los Angeles, CA
Age:45–54
Rated 5.0 out of 5 stars
11 months ago

Super Bright Flare worth the money

I went with this option although being pricier than others it performs the way it should. I tried a cheaper Rock Bros option off eBay and it didn’t work properly. The Trek Flare is well built, compact, chargeable and is super bright with different settings to switch from. Due to having a rear seat bag mounting it on the seat post was not an option so I mounted it on the frame down tube and it shines right through the rear triangle, it looks pretty cool. My take is spend the little extra money and don’t be disappointed with cheaper options.

Age:45–54
Unclejimmy
Location:Atlanta GA
Age:45–54
Rated 2.0 out of 5 stars
1 year ago

Worked great until it didn't

Quit holding a charge after 1 year of occasional use, never in rain. Was fine while it worked, bright and small. But for $65 I expect a m ore durable light. Rubber seat post strap also broke, had to buy another.

Age:45–54

Energy Efficiency

Short battery lifeExtended battery life
Defyguy
Location:Minneapolis
Age:45–54
Rated 5.0 out of 5 stars
1 month ago

Great light!

Purchased one of these approximately five years ago. Nice and bright. I love all the various modes in case you are riding in a group so you don't blind the person riding behind you. It's held a charge just fine, and I'm charging it now for the season as a matter of fact. I love it's not too big & attaches (with an adapter - purchased separately) for saddle bag attachment. I'd definitely buy again. Keep in mind you're buying especially a taillight for safety., so don't go cheap unless it's rated really well & is bright enough.

Age:45–54
Velcro_Ninja
Location:Las Vegas
Age:55–64
Rated 4.0 out of 5 stars
1 week ago

Pocket sized protection. Pairs to your ANT+ device

Neat idea and nice that they are ANT+, first one had a short battery life. I hope the replacement fares better.

Age:55–64

Energy Efficiency

Short battery lifeExtended battery life
calvin
Location:Chico CA
Age:65–74
Rated 5.0 out of 5 stars
6 months ago

for what this dose, an excellent value

an excellent product, works really well under all conditions and simple recharge

Age:65–74

Energy Efficiency

Short battery lifeExtended battery life
MTKDad
Rated 5.0 out of 5 stars
1 week ago

Anonymous
Rated 5.0 out of 5 stars
2 months ago

Anonymous
Rated 5.0 out of 5 stars
6 months ago

Anonymous
Rated 5.0 out of 5 stars
8 months ago

1 - 10 of 12 Reviews

Questions & Answers

Loading Questions...
10% co-op member reward: $7$7 Member Reward
$30Member Bonus Card

This purchase pays for membership!

$7

10% Reward

on this and every eligible full-price item*

+

$30

Bonus Card

valid for 30 days after joining*

=

$37

Value

Buy a lifetime $30 membership and make a $50 purchase by Sep 07, 2026.*

Keep shopping