Smith Optics Engage Mips MTB Helmet Review
A good value mountain biking helmet for all-around trail riding
The author testing the Smith Optics Engage Mips on trails in Southern Utah’s high desert. Photo by Tom Callaghan.
July 17th, 2026
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Our verdict
The Smith Optics Engage Mips MTB helmet is among the most popular options for trail riders and one of Smith’s best-selling mountain bike helmets. After dozens of miles of testing, from Colorado’s chunky high alpine trails to flowy and dusty singletrack in the Southern Utah desert, we understand why this is.
This helmet offers lots of comfort, coverage, and multiple forms of impact protection, all at a friendly price point. It’s not the most budget-oriented option out there, nor does it have all the bells and whistles of premium MTB helmets. But of all the mountain bike helmets we’ve tested over the years, the Engage offers some of the best bang for your buck overall.
If you don’t want to spend top dollar on your mountain biking helmet, but still want an option that’s great for all-around trail riding, offers plenty of coverage and impact protection, all without sacrificing too much in the way of comfort and airflow, then the Engage Mips should be at the top of your list.
Smith Optics Engage Mips
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Smith Optics Engage Mips specifications
Price: $150
Weight: 350g (medium)
Helmet type: Trail
Safety tech: Mips, KOROYD
Construction: In-mold
Number of vents: 21
Visor: Adjustable, 3 positions
Fit system: Dial fit system
Sizes available: S-XL
Certifications: U.S. CPSC Safety Standard, CE EN 1078
Best for
Trail riding
Technical terrain
Cross-country riding
Riders who want a solid helmet at a good value
Comparison table
| Mountain Bike Helmet | MSRP* | Rotational Impact Protection | Virginia Tech Rating | Visor | Venting | Sizing |
|---|---|---|---|---|---|---|
| Smith Engage Mips | $150 | Mips | Not rated | Yes, 2 positions | 21 fixed vents | S-XL |
| Smith Forefront 3 Mips | $300 | Mips Air Node, Koroyd | Not rated | Yes, adjustable | 20 vents, AirEvac | S-L |
| Smith Pilot Mips | $95 | Mips | Not rated | Fixed | 13 fixed vents | XS-XL |
| POC Cularis Mips | $260 | Mips Air Node | 5 stars | Yes, adjustable | 15 fixed vents | S-L |
| Giro Fixture Mips II | $85 | Mips | Not rated | Yes, fixed | 13 fixed vents | One size |
What we liked
The Smith Optics Engage Mips is an excellent choice for riders who want a solid trail riding helmet at a reasonable price. Photo by Tom Callaghan.
Comfortable fit
Great value
Multiple forms of impact protection
Secure retention system
Good coverage, especially at this price
What could be better
Helmet straps don’t lie flat
KOROYD restricts some airflow
How we tested
We tested the Smith Optics Engage Mips side by side with other affordable helmets, including the Smith Optics Pilot Mips. Photo by Tom Callaghan.
We spent time testing the Smith Optics Engage Mips across a variety of trails. We rode flowy and dusty singletrack in the Southern Utah desert on hot and sunny days, and we spent cool mountain mornings pedaling and descending alpine and forested trails around Colorado.
Some rides were hot laps to beat the heat, while others were hours long with lots of climbing. We assessed comfort, airflow, functionality, and more while testing this helmet, and compared it directly to other similarly specced helmets on the market from multiple different brands in our Best MTB Helmets guide.
We also directly compared the Engage Mips to other popular Smith Optics helmets, including their most budget-oriented options like the Smith Pilot and Smith Convoy, and their most premium mountain bike helmet for trail riding, the Forefront 3. For this review, we had one primary tester who tested the helmet in a size small.
Performance in the field
The Engage Mips has 21 different vents that provide airflow when riding. Photo by Tom Callaghan.
Fit and comfort
As far as fit goes, we found the Smith Optics Engage Mips MTB helmet to fit very comfortably and snugly. It fits better and more securely than some budget-oriented options we’ve tested from Smith Optics. Our tester had no issues or pressure points with this helmet, and we think most folks will find it comfortable. Even on long, hot rides, this helmet did not pose any comfort or fit issues.
Ventilation
We tested the Engage Mips on climbs under the hot high desert sun in Southern Utah. Photo by Tom Callaghan.
Ventilation in the Engage Mips helmet is right around average, if not slightly above. With 21 vents, there is ample airflow, though some of them lose airflow due to the KOROYD structure. KOROYD is a form of impact protection that often fills the helmet's vents with a structure that looks like straws glued together—so there is still some airflow, but it is more limited when KOROYD is present.
We rode in this helmet on sunny, 85-degree days in the desert (with a tester who runs hot) and didn’t have any issues, though when we switched to a more premium, better-ventilated option, we noticed and were thankful for the extra airflow. That said, the Engage offers plenty of venting for all but the hottest days on the trail.
Protection and coverage
The Engage Mips has better coverage than other budget-oriented helmets we’ve tested. Photo by Tom Callaghan.
Especially considering the price, we think the Engage offers great coverage. No, it’s not the highest-coverage option out there, but it’s more than sufficient for all-around trail riding. This is a mid-range priced helmet, and it offers mid-range coverage that we think is better than average.
The Engage helmet uses Mips for rotational impact protection, which is the industry standard and is comfortable and effective. But in addition to that, the Engage also has KOROYD for directional impacts that is strategically placed in the sides of the helmet where those blunt impacts are most likely to occur. KOROYD is that straw-like structure that crumples on impact to help mitigate the forces applied to the head from said impact.
Stability and retention
While not a BOA system, the Engage Mips does have a 360 dial fit system that feels secure and comfortable. Even on rides through rock gardens and chunkier terrain, we didn’t have an issue with the helmet rattling at all and never had to adjust the dial during a ride.
Weight and feel
The weight of the Engage Mips is right around average. It neither feels like a feather nor like deadweight when you’re wearing it. The overall feel is comfortable and secure, and it feels like your head sits nicely and comfortably inside the helmet shell.
Our only complaint with the overall feel of the helmet is that the straps do not lie flat, which is a feature common to most of the more expensive MTB helmets. It’s easy enough to forget about once you start riding, for the most part. But it feels like a simple feature that we wish Smith would incorporate here.
Usability
The Smith Optics Engage Mips is comfortable and easy to adjust with the click dial on the carriage. The visor is also very easy to move into the three different positions and isn’t sticky at all. We found this useful on days when we started riding early in the morning and could easily adjust the visor, even while pedaling, as the sun shifted throughout the ride.
You can easily store MTB sunglasses under the visor when it’s lifted to the highest position, or on top of the visor in the lowest position, though this option isn’t quite as secure.
The helmet straps are easy to adjust, but as noted before, we wish they had a lay-flat design.
Durability
The overall build quality of the Engage Mips MTB helmet is good, and through our testing, the helmet seemed to be very durable. We rode in various conditions (including hot desert days and cool alpine mornings) and toted it around in a large gear duffel between trailheads and across state lines. So far, the only sign of use on this helmet is a little desert dust—no dings or scratches whatsoever. We expect this helmet to have great longevity overall, as with most other Smith Optics MTB helmets we’ve tested.
Features
The Smith Optics Engage Mips uses Mips Evolve Core for rotational impact protection. Photo by Stasia Stockwell.
Rotational impact protection system
The Smith Optics Engage Mips, as implied by the name, uses Mips for rotational impact protection. This helmet uses Mips Evolve Core.
Additional impact protection
Along with Mips, the Engage also features KOROYD, which helps to lessen the force of blunt impacts (rather than rotational ones). This is strategically placed on the sides of the helmet where impacts are most likely to occur.
Adjustable visor
There is an adjustable visor on the Engage Mips which can be set to three different positions (high, average, and low).
Fit adjustment dial
The Engage Mips has a click dial fit system that can turn in both directions for easy adjustment.
Ventilation channels
There are 21 fixed vents on this helmet, four of which are filled with KOROYD.
Sunglasses storage
You can easily store MTB sunglasses on top of the helmet, either above or below the visor, depending on its position. We tested the Engage Mips with multiple different pairs of sunglasses, including the Smith Optics Wildcat and Bobcat, and the POC Devour Mid.
Sustainability
Smith Optics is working towards zero plastic waste in their packaging.
Similar MTB helmets
Smith Engage vs Smith Optics Forefront 3
Price: $300
Weight: 410g (medium)
Impact Protection: Mips Air Node, Koroyd
The Forefront 3 is Smith Optics’ most premium half-shell trail MTB helmet, and it has the price tag to prove it. Upgrades you get with the Forefront 3 include better shell coverage, KOROYD in more places, Mips Air Node, and an incredibly comfortable and slick BOA Fit System. Lay-flat straps and a more unique design also add to this helmet’s premium build and price.
But, if you’re looking for a more affordable option that’s an excellent contender to the Forefront, we think the Engage Mips is a great option that offers far more than half the helmet at half the price. See our in-depth review of the Smith Optics Forefront 3 mountain bike helmet to learn more.
Smith Optics Forefront 3
Smith Engage vs Smith Pilot
Price: $95
Weight: 370g (medium)
Impact Protection: Mips
The Pilot Mips is the newest budget-oriented option from Smith Optics. It has Mips for impact protection, but no KOROYD in this model. And while it shares some of the design language of the Forefront 3, it is clearly a budget helmet overall, and we noticed this most in the fit and coverage. We think it’s worth shelling out an extra $55 for the Engage Mips if that’s within your budget. You get more helmet and more comfort without the full premium price tag.
Smith Optics Pilot Mips
Smith Engage vs POC Cularis
Price: $260
Weight: 360g (medium)
Impact Protection: Mips Air Node
The Cularis is one of POC’s higher-end helmets, though not at the top of the charts in terms of price or features. This helmet has Mips Air Node and a magnetic buckle, and we found it to be more breathable and comfortable overall than the Engage—but at over $100 more. So, if comfort and airflow are top priorities, consider the Cularis. But if you’re looking for excellent overall value, the Engage is where it’s at.
See our in-depth review of the POC Cularis MTB helmet to learn more.
POC Cularis
Should I buy the Smith Optics Engage Mips MTB helmet?
KOROYD, seen here in the vents, is placed on the sides of the helmet where impacts are most likely. Photo by Tom Callaghan.
Buy if:
You want a great trail riding helmet at a very reasonable price
You prioritize coverage, impact protection, and overall value
You want more features than a true budget helmet, like better coverage and a dial fit system, but don’t want to shell out for a premium-priced helmet
Skip if:
You want maximum ventilation in your helmet
You want all the bells and whistles, like a BOA Fit System, magnetic buckle, and lay-flat straps—and don’t mind paying for it
Where to buy
The Smith Optics Engage is a popular gear item, so you have options when it comes to retailers. Here are some of the pros of the retailers.
REI
Pros: 100% satisfaction policy for 1 year; 10% dividend for members.
Backcountry
Pros: Frequent sales for Expedition Perks members (free to join), fast shipping, Gearhead chat customer service is excellent
evo
Pros: 364-day returns, free membership gets discounts on services and rentals
Why you should trust us / About the author
A true mountain dweller, Stasia feels far more at home on a high alpine ridge than on a busy city street. She’s worked as a backpacking guide in Southeast Alaska, has held a WFR, AIARE 1, AIARE 2, and Avalanche Rescue Certifications, and is working to become an avalanche education instructor. She’s now a full-time writer and editor in the outdoor space and has been testing and writing about gear for over a decade.
Stasia learned to mountain bike as a kid in Utah and rekindled her love for the sport after moving to Summit County, Colorado, and getting a new (and very much improved over her very old hand-me-down) full-suspension bike several years ago. She spends most of her summer days out on the singletrack. Stasia has been testing mountain bike helmets for several years and has learned what to look for in a great one. Thankfully, she has not had to do too much true impact testing—aside from the time she went OTB after just discovering she was pregnant with her first child. Whoops. (Everything was fine, and now that kid rides his own tiny bike, also often recklessly.)
Find more of Stasia’s work on her Treeline Review author page.
