These days, you can't throw a stick into the forest without hitting a rider who's wearing some type of enduro-inspired helmet, and for good reason. Up until a few years ago, you either chose a relatively feathery cross-country lid if you were pedaling or a hot full-face if you were shuttling, but the new breed of trail and enduro helmets offer more protection, loads of venting, and only a marginal weight penalty over what is essentially a road bike helmet with a visor stuck on it.
Kali's $180 USD Interceptor is one of many enduro half-shells on the market, but it employs some unique technology that sets it apart from other helmets. This includes Kali's Low Density Layer inserts that are said to protect against smaller, less violent but much more common impacts, and also their Nano Fusion shell that uses multi-density EPS with acrylic self-healing foam and carbon nanotubes. At least it sounds really safe, right?
Interceptor Details• Intended use: trail / enduro
• Low Density Layer inserts
• Nano Fusion shell
• Twenty four vents
• Light and camera mounts included
• BOA retention dial
• Colors: black w/ either blue, gray, red, white, or purple accents
• Weight: 390-grams
• MSRP: $180 USD
•
www.kaliprotectives.com Design The Interceptor is a trail / enduro helmet, and as such it makes use of extended protection at the back of the head that supplies more coverage than a cross-country focused helmet would. Being an enduro lid, the Interceptor's three-position visor can be pushed up to make room for your goggles when you don't have them on your face, and Kali even includes an integrated light and camera mount that can be easily installed or removed in seconds.
The shell sports twenty-four vents, and Kali say that they were able create such large vents by reinforcing the leading edges with composite inserts. There are five of these 'Supervents' (Kali's words, not mine) at the front of the Interceptor, and nineteen exhaust ports at the back to let the heat escape.
Kali has also invested a lot in their own technology that you won't find from other brands, and it's no surprise that the company claims that all of this makes their helmets safer than other options on the market. This includes their Low Density Layer inserts and the futuristic sounding Nano Fusion shell, both of which are explained below.
Low Density Layer - Kali's Brad Waldron, the man behind several of the helmet brand's inventive safety solutions, believes that a lot of helmets on the market are sacrificing some day-to-day safety for protection against that relatively rare, worst-case blow to the head. How so? The EPS foam used to construct most lids has to be so rigid that it's not great at dealing with smaller, less violent impacts, even though those are arguably far more common than the kind of crashes that leave you feeling as if you were hit by a train. Waldron's solution was to add another element between the head and the helmet, much like how MIPS sits between the shell and the rider. Waldron said that he wanted something more effective than MIPS, however, so he worked with a company called Armourgel to come up with LDL (an acronym for Low Density Layer) which are odd looking green strips placed under the pads inside of the helmet's shell.
See those funny looking green strips under the padding? That's Kali's LDL system that's said to better protect the rider's head against smaller but more common impacts.
These rubber-like strips (Armourgel and Waldron aren't saying exactly what they're made of) have a very specific shape to them, with short, cylinder-like extensions designed to flex laterally when an off-axis impact occurs. The concept is that they'll allow for some movement and energy dissipation before the EPS foam comes into play, which Waldron says lets the helmet reduce rotational forces by 25% and low-G impact forces by a claimed 12%.
Nano Fusion - It might sound like it's something from a NASA science lab, but it's actually an in-molding process that joins acrylic self-healing foam and carbon nano tubes with the Interceptor's EPS shell. In simple terms, what all that means is that Kali has used a different density foam, one that they say "dissipates energy more efficiently and in a smaller volume than any other material on the market,'' in places on the helmet's shell that are likely to make contact with things that don't move, like the ground.
The multi-impact material is also said to allow for a thinner shell, which in turn should mean that the helmet is applying less leverage to the rider's head and neck when it hits the dirt, rocks, or trees.
The Interceptor has a relatively low profile compared to some of the larger enduro-inspired helmets on the market.
Performance From dual-shell designs to inserts to MIPS to the LDL system that Kali employs on the Interceptor, there's no shortage of helmets touting improved protection. I can't honestly tell you if one is any better than the other (I'm sure the helmet companies could, of course), but it's a no-brainer to assume that any helmet that has an added element of safety is a good thing. I'll pass on the real world MIPS and LDL testing, thank you very much. In light of that, however, the next most important thing to note is that regardless of whatever added safety features that a helmet has, they must be absolutely undetectable until you need their help. And Kali's LDL system does exactly that; you can't feel the odd looking green inserts, but they're there to do their job.
Fit-wise, the Interceptor feels neutral, being neither overly round or too oval-shaped. Yeah, the usual "try it on before you buy it" always applies when it comes to helmets, but I suspect that most riders will feel good about what Kali has done with its shape and fit.
What good is an adjustable retention system if you need to squeeze it down so hard that your eyes feel like they're going to pop out of your head? Thankfully, the Interceptor's BOA system doesn't require eyeball-popping tightness to keep the helmet put; the band can be tweaked with a single hand and made just snug enough without feeling like the Hulk is going to town on your dome with a strap wrench. The tension is spread out evenly, too, so there are no hot spots, and it never backed off. Set it and forget it.
With the BOA tension applied, the Interceptor refused to slide down the forehead, and it felt all but invisible the large majority of the time. The one caveat comes down to the helmet's visor that's attached on the sides but not in the center, thereby allowing it to rattle a bit as the unattached center portion of the visor (pictured at right) would make contact with the shell when riding over fast, rough ground. It seemed to need just the right frequency to happen, but it'd rattle at least once every few rides. The solution? Double-sided tape. ''We are making a running change to the visor material which will resolve the issue,'' Kali's Julian Coffey said. ''All Kali bike helmets are covered by our free Lifetime Crash Replacement warranty as well.''
But while the visor could make a clatter sometimes, it was always up and out of peripheral vision, which is something that far too many helmets get completely wrong.
The Interceptor also plays nice with both glasses and goggles, although the goggle strap does seem to tug upwards when it's stretched over the back of the helmet. Kali's 'Supervents' do a super job of letting fresh air pass into and out the helmet, with the Interceptor feeling like one of the airiest lids on the market. It certainly trumps most in this regard, barring pure cross-country helmets, which is impressive considering that the Interceptor offers far more protection.
Pinkbike's Take: | The Interceptor is one of many trail / enduro helmets on the market touting improved safety through the use of added features and technology, and while it's not perfect - the easily solvable visor rattle isn't ideal - the helmet's class-leading venting and comfort make it worthy of considering it against any other option out there.— Mike Levy |
"Being an enduro lid, the Interceptor's three-position visor can be pushed up to make room for your goggles when you don't have them on your face"
This Kali, the 6D, and the Leatt seem to be the helmets taking concussion protection very seriously by developing a medium density mid-layer versus just licensing a slip layer (MIPS). Have you tried all three and can you comment on best and worst aspects of each? Ventilation, weight, adjustability, build quality, perceived protection.
Also, is this the right group of top trail helmets? Do others belong in the running? Would make a great "tried and tested".
Smith uses Koroyd, which is a honeycomb style material (which also other brands like Endura use),
but the approach of Kali, 6D & Leatt is different, because of bespoke additional mid-density padding for low speed impacts and rotational force dampening.
www.pinkbike.com/news/leatt-dbx-30-all-mountain-helmet-review-2017.html
Kali: Lightest weight. LDL is awesome, but could be bigger to allow greater range of movement. I love the MAYA most, but the interceptor is great too.
6D: Bulky. More mass = more momentum and force in a crash, resulting in more force against the brain. Also, the elastic hourglass pieces wind up in a crash and snap back. This "rebound" is actually the most dangerous element of a concussive crash. They do an awesome job with their "shear-off" visor bolts, eliminating risks of a visor catching on an obstacle.
Leatt: Similar to Kali LDL with their "turbine" bits. Unfortunately the plastic spikes that hold them in are painful in a crash. They are awesome and share tons of testing data with full transparency.
MIPS: The biggest joke around. Doesn't work in real world test. A cheap gimmick that can be added to almost any helmet for cheap and allow companies to charge $25 more per helmet. It doesn't work. A play on your fears for CASH. Heres why:
1.To work, the rubber bands between the liner and the helmet would cause the rebound concern, even IF they worked.
2. For the bands to engage, the inner liner has to stay put while the helmet rotates. To do this, it has to be fixed to the head by being either SUPER uncomfortably tight, or stuck to... say... a test dummy head.
3. The bands are so soft and have so much free play, that to do much of anything your helmet would have to slide half way down your face before they actually do anything effective.
Yes, we can argue. Ive ridden them all, taken them apart, built my own testing rig with accelerometers, etc etc. If you want to make an argument, make it a fact based educated one please.
Regardless of all, I'm glad concussions are getting attention and companies are making an effort.
P.S. YES I RIDE FOR KALI. And I question and challenge them every day. The minute I don't think they are the safest option, I will leave them. So far 9 years strong with them.
@RichardCunningham: have you tried the Kali yet?
@livehardrideharder: nice comparison! Thanks for that.
Or the comment is so generic as to don't buy a cardboard helmet?
Maybe you wanted to say as the Interceptor is not made from carbon fibre, or isn't very expensive, it is not very good? Each person reading your comment has a different idea in his head.
Kali helmets may or may not be superior, but at least they're trying. One of the few companies to be introducing new thinking and new materials - and probably the most actively in this regard. Great crash replacement policy, too.
There are very few helmets that justify a price over $100, but I feel this one does.
Also, the statement I make to my kids. Safety first, then be a dumb as you want to be.
With just a few added in "safety measures" like MIPS.
I don't buy the relevance of your 'the best people had poor academic records' bit either. That sounds like the people who say Einstein failed math.... He was doing vector calculus as a pre-teen. Hardly bad at math. Exceptional circumstances and people can't really be used to illustrate the rest of us.
All this is besides the point though, I was really hoping to illustrate that while all helmets pass the same tests, the bar for those tests is set quite low, and it would be reasonable to select the helmet that passes easily over the one that barely makes it through.
-"The multi-impact material" - Does this mean the helmet can take a few smaller hits? How do we know what constitutes a small enough hit? I just replace my Giro Chronicle because I took a couple rocks to the head in a crash. There were some dents in the shell. I felt like this was enough to warrant replacing it. i couldn't really see any damage from the inside of the helmet though. Maybe i could've kept riding with it. Better to play it safe I feel.
-"All Kali bike helmets are covered by our free Lifetime Crash Replacement warranty" - Does this mean that you get a free replacement or does this mean that getting a warranty is free, but you have to pay for the new helmet?
bike.kaliprotectives.com/lifetime-crash-replacement-guidelines
Looks like you get one free one, after that you get a discount. You do have to jump through some hoops, but i like that they offer it. I got a 30% discount from Giro on mine. I didn't end up using it, since i found it for the same price but with faster shipping from a different source.
Our Lifetime Crash Replacement means that if you crash in a Kali, provided you have your receipt, send the helmet to us and we'll replace it for free. You pay the shipping costs.
Looks like they'd saw into your scalp, or interfere with glasses. What's up with that?
Or did you take the pics with the tags still attached?
they know like noone else how to take advantage of that concussion thing. And what about their lifetime warranty? Just brilliant. seems like they're doing you a favor, when you actually are paying for it.
Safety wise, in mountainbiking the helmet is comparable to ropes or carabiners. However, everytime some helmet company claims that its product prevents skull fractures around X% or concussions around Y% under certain circumstances. Sorry, but I dont believe it. I miss here something similar to what's happening to climbing stuff. There should be minimum safety values and it should be mandatory to especify some relevant features on the helmet.