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

PIKIO LABS’ brand new Si helmet created quite a splash when it launched earlier this year, as a candidate for the "World’s Safest Cycling Helmet" mantle, per Virginia Tech’s independent helmet testing lab. The Si’s STAR value score of 4.61 bettered that of helmets from other manufacturers by over 2 points, a significant margin for the rating system, which typically awards scores in the 7-10 point range.

At the time of the initial product launch, the Si’s Virginia Tech STAR value had not yet been released, but upon publication, the helmet appeared at the very top of the lab’s safety ratings. The institute’s testing protocol involves a series of stringent impact tests, utilising "a drop tower designed to match helmet-to-ground characteristics in cycling." The lab "measure[s] linear acceleration and rotational velocity for each impact, which are correlated to concussion risk." These tests are very highly regarded in the industry.

For better or worse, our testing did not feature any hands-on impact testing, so we will defer to Virginia Tech’s expertise vis-à-vis crash safety.

Latest Videos From

Watch full video here:

We were able to evaluate the helmet in a variety of other ways, however. How any given helmet looks, fits, weighs, and performs in a wind tunnel is important to consider, but it's important to remember that how well it performs in the event of a crash should remain a major, if not the major feature of a bicycle helmet. In this regard, the Si appears head and shoulders above the competition.

Design and construction

The secret behind the Si’s outstanding STAR score is a technology that PIKIO calls OBLIK (pronounced ‘oblique’), which the company describes as a "modular impact management architecture" that uses "micro cavities and deflection sensitive nodes" to absorb and redirect energy from a crash. This design is intended to reduce linear and rotational forces on the head, which should translate into lower potential for injury.

That’s a lot of technical jargon, but then the design of the Si is quite unusual. The interior of the helmet has independently moving pieces, which are attached but uncoupled from the rigid external carapace. Most standard bicycle helmet designs use a hard plastic outer shell combined with an internal layer of crushable foam, forming a single unit which performs well in the event of a linear impact. Many modern helmets also employ MIPS (Multi-Directional Impact Protection System), or something similar, with an internal layer that rotates to protect against shear forces, lessening the amount of energy transferred through the helmet.

PIKIO’s system accomplishes these aims with a different approach, by creating separation between the helmet layers. In addition, each individual module (the internal helmet ribs) is able to move independently, thus allowing the helmet to dissipate force, better dispersing the energy from different types of impact. This method clearly performs very well for VT’s testing protocol, hence the excellent safety score.

The Si has 17 large ventilation channels, dual density foam, and a built-in eyewear dock. It fits heads from 51-61 cm, divided into three sizes (small, medium, and large) and is available in the following colours: Titanium Gray, White Pearl, Black Onyx, and Graphite Black.

My test helmet, a size small, weighed 254 grams, which is competitive among comparable helmets.

The Ride

The first thing I noticed when I tried on the Si was how comfortable it was. Because of the complex, layered design of the OBLIK system, each internal rib can move on its own, which allows it to contour to the shape of a person’s head. The design may have been formulated in the name of increased safety, but a welcome bonus is significantly increased comfort.

Head shapes vary a great deal, so it may not be the case for everyone, but I found the helmet to be exceptionally comfortable. The flexible interior eliminated any hotspots, and the interior of the helmet felt like it was moulded to my head.

Riding in the helmet was incident-free (no crash testing here!) and even after longer days, it remained comfortable. The eyewear holder, which consists of two rubber crows' feet on the front vents, worked as advertised, and nearly everything else performed as it should.

The multi-layered design does impact how the retention system works—the straps are attached to the outer shell as opposed to being located inside the helmet. As a result, they do not sit flush with your head, and I found that they got in the way of my sunglasses' arms. This could be refined further.

I was curious about the Si’s aerodynamic performance, as PIKIO makes the claim that the helmet "maintains aerodynamic performance comparable to leading premium road helmets." When I asked company founder Daniel Abram about this, he said that the company tested the helmet at the University of British Columbia Aerolab, using "Wind Averaged Drag (WAD), which is designed to reflect real-world riding conditions across a range of wind angles."

The Si was compared against models like the POC Cytal and Specialized Prevail 3, and, according to testing, performed comparably with "only minor differences that are not meaningful in typical riding conditions."

The testing was conducted by aerodynamicist Dr. Len Brownlie, who has worked with cycling helmet and wheel companies previously, such as Giro and Hed.

The wind tunnel testing "included multiple yaw angles (0°, 10°, 15°) and speeds ranging from 32 to 48 km/h using a cycling-position headform setup." Abram noted that during testing, it was observed that "airflow through the PIKIO vents increased at yaw angles, suggesting improved ventilation under crosswind conditions, which are common in real-world riding."

I’m somewhat surprised that the Si tested so well against more aero-focused helmets, and would love to see some independent testing confirm these results, but it’s good to remember that sometimes looking fast and actually being fast are not the same.

Aesthetically speaking, I was less enamoured with the Si. The shape is a bit bulky, somewhat round and shallow (akin to POC’s Omne series), especially compared to other modern helmets, most of which are designed primarily with aerodynamics in mind and are far narrower. For all of the tech packed into the helmet, the exterior is rather bland.

One other qualm I have is the limited colours that PIKIO has on offer. All are along the same lines: black, white and… grey. Crash performance is one important aspect of safety, but so is visibility, and this helmet is not very visible. Where are the bright colours? It would be great to see some more vibrancy in the colour palette, as well as some reflective elements added.

Specifications

• Price: $379 US
• Colours: Titanium Gray, White Pearl, Black Onyx, Graphite Black
• Weight: 254 grams, size Small (Medium: 279 grams, claimed)
• Website: pikiolabs.com
• Sizes: S, M, L

Value and Conclusion

Image 1 of 3

It’s been said that you can’t put a price on safety. It would be highly unusual for someone to crash, hit their head and say, “I wish I hadn’t been wearing a helmet.” I’ve certainly heard the opposite said many times, and every time I’ve hit my head in a bicycle crash I’ve been nothing but thankful that the outcome wasn’t worse. Some may baulk at a nearly $400 price tag for a bicycle helmet, but you know what else is costly? Head injuries.

There are certainly many other helmets on the market with similar MSRPs, and none of them can compete with the Si’s safety rating, based on how it performed at Virginia Tech’s Helmet Lab. In terms of value, the Si is priced comparably to other top-end helmets on the market. PIKIO also offers a discounted replacement helmet in the event of a crash within the first year, as well as free returns, with some conditions.

Helmets may not be the most exciting product out there, but I’m glad to see there is some innovation still to be made in the name of safety. It will be interesting to see if PIKIO licenses out the OBLIQ technology to other companies or if it retains the technology for its own products. At the moment, there is nothing else out there quite like it, but I expect to see some more competition in the future, and that’s a good thing for all of us.