Customer Reviews

Based on 83 reviews
80%
(66)
10%
(8)
7%
(6)
2%
(2)
1%
(1)
K
Keira Flanagan

I am really impressed by this helmet. I was sold by the Virginia Tech Helmet Safety rating, and have been blown away by how comfortable it is, how well the glasses retention system works, and how well ventilated it is. It took a couple hours of riding to form to my head, so don’t be dismayed if it doesn’t fit perfectly right out of the box.

Thank you so much, Keira! We’re thrilled to hear that you’re enjoying the comfort, ventilation, and eyewear dock, and we really appreciate you taking the time to share your experience. Happy riding!

A
Anonymous

Fits great. Feels secure and safe.

Thanks, Brian! Great fit and a secure feel are exactly what we want from every PIKIO helmet. We’re really glad yours feels right from the start. Enjoy the rides ahead!

K
Katherine A Stone

The lightest, most comfortable helmet I have ever had in my life. It holds my head in a way that just arguably feels safer. I'm glad I took the leap and invested in this helmet. My whole family is converting now!

Thank you so much, Katherine! We’re so happy to hear that your PIKIO feels light, comfortable, and secure. Knowing that you feel confident in your helmet is exactly what we hope for.

And hearing that the whole family is converting to PIKIO might just be our favorite part! 😊 We hope there are many great family rides ahead, with a little more peace of mind for everyone.

S
Sean Young

I met Daniel at Sea Otter hoping I could find an excuse not to spend nearly $400 on a helmet. I walked away counting change in my pockets until I could buy one. That day is finally today.

I wanted to be an engineer as a kid. Life took me other directions, but I'm fascinated by quality design and function-over-form principles. I've had two concussions (both from football) and I take the health of my remaining brain quite seriously. So when I heard about the new Virginia Tech rankings scale and the new winner I had to look into it, and then about two weeks after that I got to see it in person at Sea Otter.

Press pieces don't do it justice. The booth had all the best visuals for every layer in the helmet and why it works. The test fit was for the large because he was sold out of the mediums already, which was a good sign in my book. I got to pick Daniel's brain a bit and was impressed every time, which is not a thing I get to say very often. Seeing the cut-up helmet in person gave me the full picture of how it works and I cannot find any faults with the design.

I used to want an aero helmet. Why not save the watts? But I can recover from wasting two or three watts far more than I can recover from a third concussion. A helmet is there to protect your brain, and to do so without cooking it inside or becoming a parachute. There are cheaper helmets that score really well, but if there's ever a component or accessory to spend extra on it's a hard bargain to put it anywhere other than the helmet.

Thank you so much Sean for this incredible review and for sharing your experience! It means a lot to our entire team, especially hearing about your conversation with Daniel at Sea Otter and your appreciation for the engineering behind PIKIO Si.

We couldn’t agree more that a helmet’s most important job is protecting your brain, and that principle is at the heart of everything we do.

Thank you for choosing PIKIO and for trusting us with something so important. We hope you love your new helmet and wish you many safe and enjoyable rides ahead!

S
Sunil

The helmet is perfect for safe guarding my brains going forward. After a crash i had earlier this month and having to throw out my prior helmet super excited to have this new one though it does run small so getting it exchanged for a medium since the small i ordered was too small (even though it was supposed to fit up to size 55 i am right at 54 so at the cusp).

Thank you, Sunil! Hope you're recovering well after the crash. We’re glad to hear you’re excited about your new helmet, and we hope the Medium is a perfect fit. We really appreciate your feedback on the sizing as well!

News

A man wearing a black PIKIO Si OBLIK bicycle helmet, photographed in profile against a light beige textured wall.

The Pikio Si Oblik is the safest cycling helmet ever tested by Virginia Tech

BikeRadar
August 13, 2026

Learn more

Black PIKIO Si held in front of green foliage

Not just safe, but comfortable too—PIKIO LABS’ groundbreaking Si helmet, reviewed

Cycling Weekly
June 18, 2026

Learn more

Gray PIKIO Si helmet on a blurred natural background

Upstart PIKIO LABS’ New Si Road Helmet with OBLIK Technology Tops Virginia Tech Ratings — By a Lot

Bike Rumor
March 31, 2026

Learn more

White PIKIO Si with black accents and OBLIK technology on a beige background

Pikio Labs’ Si sets new benchmark in Virginia Tech helmet testing

Escape Collective
March 30, 2026

Learn more

Load video: Animation describing the 360 degree impact management system in the PIKIO SiLoad video: Animation describing the 360 degree impact management system in the PIKIO Si

360° Impact Management

Our patented OBLIK™ impact system technology enables each modular component to move omni-directionally. This movement allows the cycling helmet to respond dynamically to impacts from any angle, helping manage both rotational forces and linear forces more effectively for enhanced impact protection.

Load video: Animation showing the ventilation  in the PIKIO Si helmetLoad video: Animation showing the ventilation  in the PIKIO Si helmet

Superior Ventilation

17 precisely positioned vents and deep internal channels create a controlled airflow path that draws cool air in and efficiently evacuates heat. The ventilation architecture is integrated into the shell to maintain aerodynamic integrity.

Load video: Animation shows cross-section of the PIKIO Si equipped with double-density EPS foam and macro-cavitiesLoad video: Cross section of gray PIKIO Si equipped with OBLIK technology

Dual Density EPS Foam

Impact forces vary in intensity, and helmets with single density foam are often less effective at managing the moderate impacts that occur most frequently. By integrating dual density EPS foam, our helmet responds to a broader range of impact energies for more consistent performance.

Load video: Animation describing the reinforcing layers the PIKIO Si helmetLoad video: Animation describing the reinforcing layers the PIKIO Si helmet

Macro Cavities

Through extensive research in impact mechanics, shock absorption, and bone structure, we discovered that combining micro cavities within the foam with larger macro cavities significantly enhances impact energy absorption. The result is an advanced helmet structure engineered to optimize how a helmet responds to real world impact forces, delivering substantially improved energy management compared to traditional constructions.

Load video: Animation the eyewear dock for storing sunglasses in the PIKIO Si helmetLoad video: Animation the eyewear dock for storing sunglasses in the PIKIO Si helmet

Eyewear Dock

Designed for the temporary placement of most compatible sunglasses when not in use.

Load video: Animation describing the reinforced layers system in the PIKIO SiLoad video: Animation describing the reinforced layers system in the PIKIO Si

Reinforced Layers

EPS foam is inherently fragile, making careful design essential for structural integrity. By integrating a strategically placed polycarbonate reinforcement layer, we increased strength while reducing material, resulting in a lighter, more robust helmet.

Person wearing a Titanium Gray PIKIO Si helmet, docking sunglasses on the eyewear dock
Person wearing a black cycling outfit and White PIKIO Si helmet outdoors.
Cyclist with Black matte PIKIO Si
PIKIO Si Equipped with OBLIK Titanium gray- Back view
Load video: PIKIO Labs Logo Animation

Holistic Design in the PIKIO Si

The PIKIO Si is built on a holistic design approach, where every element of the helmet is engineered to work in harmony. By balancing impact protection, ventilation, and lightweight construction, each component contributes to an integrated system, ensuring that improvements in one area never come at the expense of another. The result is a helmet that delivers optimized performance, comfort, and efficiency for the rider.

What is my helmet size?

Helmet Size Guide for PIKIO Si