The Bike Light evolution:
How & why we designed this light
When we launched the Trail Edition back in 2017 it was a game changer for bike lights. A beam pattern specifically designed for mountain bike riding with a wide evenly illuminated distribution. However it required an external battery pack, and we had lots of customers wanting to go wireless.
So we took the best parts of Trail, and evolved it into the Trail Evo. Bringing a long lasting, even brighter, even wider beam pattern to your handlebars, without any external cords.
Read on for more nerdy design details!

Advanced Optical Engineering
When we developed Evo’s beam pattern, we knew we could go wider and brighter, so we redefined our illumination goals, target candela points, beam angles, and then went to work simulating, testing, prototyping and developing the most seamless pattern we've built to date.
The extreme width is thanks to the finely tuned blended Total Internal Reflection (TIR) optics. Hundreds of simulations with Lucidshape software let us squish, squeeze, stretch and shape the light to hit that perfect balance of peak brightness, smooth falloff and insane peripheral coverage.
Check the slider comparison below to see the difference between a fine tuned optical instrument such as Trail Evo vs a name-brand light that has been around for years. The difference is staggering in person.
Advanced Optical Engineering
Mind blowing, incredible, and game changing are a few of the words used to describe how seamless and bright the Trail Evo beam pattern is.
Always hard to capture in photos or videos, best experienced in person. You won't regret it.

USB-C Pass-thru Charging
Everyone has USB charging ports all over nowadays, so we make sure you can use any of them with the Trail Evo, including almost all QC 3.0-rated chargers for super fast recharge times.
But we took that concept one step further and added Pass-Thru Charging (PTC) to allow you full access to all output modes of your light while charging from an off-the-shelf USB Power Bank, so that you can extend runtime for those epic adventures, without limiting the light available to you (bikepackers rejoice!).
We even customized the included USB-C cable to seal against the elements when plugged in so you don’t need to worry, just ride.
USB-C Pass-thru Charging
We were one of the first to offer USB-C charging as standard, except we took it a step further by offering pass-through charging as well.
This lets you plug in any USB power bank and charge the light while in use, in any mode. Game changer for 24 hour races and extra long night rides!
Rock Solid Mounting
A good light isn’t so good if
it’s bouncing up and down on the bars all the time. That’s why we made a bolt-on clamp mount for Evo so it’s solidly locked to the bar, With a simple shim it adapts from 35mm to 31.8mm bars and the beam won’t shake around like lights with rubber strap mounts do.
We adapted an established
camera tripod mount concept then miniaturized it for slick snap-in installation with a ramped-cam that always takes up the slack as it wears, so you never have a rattly interface, and an easy one-handed quick-release process to pop the Evo off post-ride to charge.

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 sequence of button presses get to the mode you want.
Evo’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, with four green indicators to clearly convey mode and battery status without the need for a decoder.
Four simple modes cover the majority of use cases from set-it-and-forget-it pedally XC to long-climb-fast-descent Enduro rides – Adaptive / High / Medium / Low – and no SOS or seizure inducing strobes stuck in between.
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 a complicated sequence of button presses get to the mode you want.

Electrifying design
We like to keep our lights simple on the outside for the user, but that doesn’t mean we’re skimping on the guts inside. The constant-current driver maintains rock solid regulation through the Cree XD16 LEDs over the entire voltage range of the genuine Samsung 21700 cells with a unique battery monitoring algorithm to give you accurate feedback without interruption.
Complete with fast QC 3.0 USB-C charging and Pass-Thru capability to boot, we engineer the electronics to maximize efficiency and runtime while minimizing charge times, all without any proprietary connectors that could leave you stranded.
Electrifying design
Our lights look simple on the outside, but that doesn’t mean we’re skimping on the guts inside.
Nine genuine Cree XD16 LEDs powered by two genuine Samsung 21700 cells with a unique battery monitoring algorithm to give you reliable and consistent runtime.

Thermal Engineering
LED lights get hot, that's a fact of life. One of our core principles is that we build our lights from the ground up to be able to handle the heat. Trail Evo in particular implements an industry-first pass-through cooling.
It is an incredibly unique feature that is enormously successful in keeping this high power lamp cool even on the hottest desert nights (looking at you Phoenix).
By collecting air through a built-in air scoop under the light, it then channels that cool air through fins that are directly attached to the LED's, and venting out the top of the light.
Thermal Engineering
High power bike lights get hot, that is why we use our engineering prowess to keep them cool.
Utilizing another industry first, we collect air through a scoop underneath the light, and pass it through the light, cooling all nine LED's that are spread apart to balance the heat load.