Portal Bike Helmet Light

Portal bike helmet light shining through mist from a rider&

Mountain biker stopped on a forest trail at night with the Portal helmet light switched on

Portal bike helmet light mounted on a helmet at sunset, side view

What comes in the box with the Portal helmet light: wide and curved helmet mounts, USB-C cable, the light and the manual

Mountain biker riding a dark forest trail lit by Outbound bike lights, including the Portal helmet light

Smiling rider wearing a white helmet with the Portal bike helmet light switched on

Portal bike helmet light on a white helmet, seen from behind, with green battery indicator lights and the action camera style mount

Portal bike helmet light straight-on front view of the LED optics, on an orange background

Portal bike helmet light mounted on a black mountain bike helmet, seen from behind

Portal bike helmet light rear three-quarter view with the helmet mount attached

Portal bike helmet light switched on, mounted on a black helmet in a dark forest, side view

Portal bike helmet light rear view on its helmet mount, showing the action camera style mounting tabs

Portal bike helmet light on a curved helmet mount, rear three-quarter view

Portal bike helmet light side view on its helmet mount

Powerful wireless helmet light for mountain biking

$185.00 USD

Shipping calculated at checkout.

In stock, ready to ship
Inventory on the way

Looking for the ultimate setup? Check out ourPortal Downhill Package (Evo & Portal)$425.00 USD

Portal, one of the scariest trails in the Southwest USA. Honestly we have no big story behind the name, it sounds cool and its a wicked trail that we love, so why not make our latest and greatest helmet light pay homage to that famous trail?

Amazingly smooth beam pattern designed to slot between the insane width of Trail Evo, but a wider beam than our beloved Hangover.
Self-contained battery, ZERO wires with a large 21700 lithium ion cell (same as found in Rivians) to power Portal through the night.
USB-C quick charging so you can hit the trail at the last minute, and not have to spend an entire day waiting to charge your light.
Simple user interface since you don’t want to be stuck in the woods wondering why your light won’t turn on! (hint: we don’t have a lockout mode).
Lightweight, tucked close to your helmet, so you forget you are riding at night with how effortless it feels.
Dead reliable, backed by a 3-year warranty and incredible customer service so you can feel confident every time you hit the trail.
Bring another level of excitement to your rides, making the same-old trails thrilling again.
Incredibly fast shipping straight from our production floor to you.
Designed, engineered, assembled, and shipped from Chicago, IL.

Portal Helmet Lighthead

× 1

USB-C to USB-A Cable

× 1

USB-C to C sold separately

Curved Helmet Mount Base

× 1

Wide Helmet Mount Base

× 1

Adapts to most helmet shapes

Helmets are like snowflakes, none are the same, and this makes mounting a challenge.

No fear though. We ship Portal with a standard curved Action Camera Adapter, but also include a flexible wide mount that can adapt to almost every type of helmet out there.

Portal ships with a helmet mount as standard. If you'd rather run it on the handlebar, an inexpensive adapter lets you use our Quick Release Mount. Sold separately:

Battery	5,000 mAh \| 21700 Cell (18.0 Wh)
Charging	QC 3.0 USB-C Pass-Thru Charging
Mounting	Helmet or Handlebar
Interface	Single Button Press
Weight	170g Lighthead
Output	~1600 lumens
IP Rating	Sealed for the Elements
Operating Temperature	-50°F to 135°F

Portal bike light dimensions: 87.3 mm wide, 54.2 mm deep, 34.5 mm tall

What is adaptive mode? Nothing too fancy, it is just the default mode when the light is turned on. It stays on high for about 5 minutes, and over the course of 30 minutes it will very slowly reduce brightness while your eyes ADAPT to the darkness.

Letting you get more runtime, without noticing a thing by tricking your brain.

All other modes are solid output so you know what you are getting at any time.

Runtime

—

Lumens

—

Perceived
brightness

—

Reviews

What riders say
about Portal.

Runtime

Measured, not made up.

Every curve here is a real bench run, from a full charge to the low-battery warning, at riding-speed airflow. Adaptive is the mode it ships in and the mode most riders never leave.

20 minget-home reserve after a flashing warning

USB-Cpass-through charging from any power bank

Runtime

—

Lumens

—

Perceived
brightness

—

Bigger 21700 battery!

In order to hit the same runtime as Trail Evo, and have higher peak brightness than Hangover we shoved a 5,000 mAH genuine Samsung 50E 21700 battery cell and wrapped the light around it.

This results in 43% more capacity over our Hangover light, meaning far longer runtimes (up to 2.5 hours on adaptive, a 50% increase over Hangover).

Even brighter!

While more lumens isn't always the answer, we added in some more brightness and increased the beam pattern width over Hangover to provide even more punch down the trail.

New finely tuned optics with 30% larger TIR cones means higher optical efficiency and more peripheral light to help spot the spooky stuff.

Simple User Interface

Few people read instruction manuals, even fewer want to, so we keep our lights dead simple so that you don’t need an advanced degree to remember some complicated button presses get to the mode you want.

Portal’s soft-touch overmolded top shell has a single, large button right in the middle that’s easy to feel through a thick winter glove in the dark, so you don’t have to hunt blindly around on top of your head just to turn it on.

Assembly worker building bike lights in Chicago

Designed & Assembled in Chicago, IL

Skillfully built by our passionate team while listening to a lot of podcasts.

Frequently asked questions

Portal or Hangover? What's the difference?

Hangover is 105 g with an 18650 inside, and it's plenty for about 80% of riders, especially paired with Evo on the bar. Portal is 170 g with a 21700, so 40% more battery, a punchier centre and a wider spread. It earns its weight on steep, fast, technical terrain where seeing deep into a chute at speed matters. XC and long endurance rides: Hangover. Enduro and DH: Portal.

Will it fit my helmet? Do I have to use adhesive?

Portal uses the standard GoPro mount interface, so it snaps into any action-camera mount. In the box you get a curved adhesive base and a wide one, which between them cover most helmets; a Notched base is available for helmets with a centre ridge. Smith Forefront owners can use Smith's own bolt-on mount. Don't want tape on your lid? GoPro's Vented Helmet Strap Mount works great. Not sure? Email us a photo of the top of your helmet.

Can I run it on the handlebar?

Yes. The Portal QR Adapter swaps the helmet interface for our quick-release shoe, and then it fits the standard QR Handlebar Mount, or the Action Camera QR Mount under a GPS. The optic was designed to split the difference between Evo and Hangover, so it makes a good smaller bar light for gravel and XC.

What are the lumens in each mode?

1650 on high, 500 on medium, 250 on low, rated to minimum output in accredited FL-1 lab testing. We don't headline lumens because the number says nothing about where the light goes, and on a helmet the shape of the beam is what you actually notice.

How long does it run?

About 2.6 hours in adaptive mode, measured on the bench from full to the low-battery warning at riding-speed airflow. Adaptive is the mode it ships in and the one most riders never leave. Full curves for every mode are in the Runtime section on this page. After the warning you get about 20 minutes of get-home light.

Can I charge it while riding? How long to charge?

Yes, in every mode. Plug a USB power bank into the port from the start of the ride, not when the light is dying. Portal's cell is 5 Ah, so a 10 Ah bank roughly doubles your night after conversion losses. From the wall, a QC 3.0 charger gets you to 80% in about 2 hours. Any USB charger works, just slower.

How does it do in the cold? Skiing?

Better than our other lights, because Portal's battery is insulated a bit more, but cold always costs runtime with lithium cells. Customers in Fairbanks ride these at -30 C and they still work, just for fewer hours, in conditions where their Garmins won't turn on. Lots of people run them for night skiing on a ski helmet with the curved base.

Is it waterproof?

It's sealed for rain, snow and a hose-down after the ride. Wouldn't be much of a bike light if it wasn't. No pressure washer, no scuba, and if you somehow drown one, it's covered.

Can the battery be replaced?

By us, free, for the life of the light. Not by you in the field. Almost every replacement we do is from a light stored dead in a cold garage all summer, not from riding, so charge it up and keep it indoors and you'll likely never need one.

What's the warranty?

Three years, plus lifetime support from a real person in our shop. Crashed it, snapped a mount tab, lost the port cover: covered. Two rules. Be kind to the people helping you, and be honest about what happened so we can engineer the failure out. Details on the warranty page.