At road.cc every product is thoroughly tested for as long as it takes to get a proper insight into how well it works. Our reviewers are experienced cyclists that we trust to be objective. While we strive to ensure that opinions expressed are backed up by facts, reviews are by their nature an informed opinion, not a definitive verdict. We don't intentionally try to break anything (except locks) but we do try to look for weak points in any design. The overall score is not just an average of the other scores: it reflects both a product's function and value – with value determined by how a product compares with items of similar spec, quality, and price.
Good scores are more common than bad, because fortunately good products are more common than bad.
The Giro Syntax MIPS is a well ventilated and comfortable helmet that deals well with all kinds of road riding. The rotational-force damping MIPS system is really well integrated for noticeable gains in cooling and comfort, and the quality is high. If you're looking at mid-market helmets, there's almost nothing to dislike about this one.
The Syntax MIPS is upper mid-range for the market in general, but squarely in the middle of Giro's range.
The MIPS system is particularly well integrated. It's fairly obvious when you're wearing a helmet that's been retrofitted, and Giro has clearly designed the Syntax with MIPS in mind. For a start, it's the same colour as the shell, and more importantly it's shaped around the vets for uninterrupted airflow. It takes a few seconds to see it, and in use it's almost imperceptible.
The channels in this helmet aren't as deep as some, but those 25 vents still keep your head nice and cool regardless. It's very comfortable regardless of temperature, too, with soft and plush pads that keeps the MIPS system off the top of your head. They don't become unpleasantly saturated or start smelling over time, either.
The straps are also integrated into the MIPS system, which is unusual. This is a really positive thing because it allows pressure to dissipate around the head rather than being concentrated at the back, allowing for a much more comfortable fit.
This strap fixing is quite a new method – some helmets I own at more than double the price don't have it.
The straps are soft and the clip is good, and the webbing, like the padding, doesn't tend to get soaked with sweat on hot rides. Adjustments are quick and simple.
At 296g the Syntax is pretty much on par for a MIPS-equipped helmet at £89.99. The Met Vinci is only 32g lighter, for instance, but offers fewer vents and a less sophisticated MIPS build for 1p more. The Giant Strive MIPS is £15 cheaper and weighs just 24g more, though Shaun found the finish slightly disappointing whilst the Giro feels high quality.
As a side note, the Syntax also comes in a non-MIPS version which is a little cheaper and lighter as a result.
Overall I was really impressed with the Giro Syntax. It looks good, ventilation is impressive, and the level of MIPS integration is both impressive and worthwhile. It's a comfortable, stylish and well-priced lid.
An impressive upper-mid range helmet with the MIPS system really well integrated
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road.cc test report
Make and model: Giro Syntax MIPS helmet
Size tested: 55-59cm
Tell us what the product is for and who it's aimed at. What do the manufacturers say about it? How does that compare to your own feelings about it?
This is an upper-mid range helmet designed for road use over longer rides.
Giro says: "The Syntax MIPS combines a touch of European flair with slightly deeper coverage and high-performance features – all tucked into a very slim design."
This is accurate. I found it offered good ventilation and is comfortable even on longer rides.
Tell us some more about the technical aspects of the product?
25 Wind Tunnel vents with internal channeling
In-Mold polycarbonate shell with EPS liner
Four-piece polycarbonate interlocking Hardbody shell
Roc Loc 5 Air MIPS
OTHER TECH AND FEATURE
Integrated MIPS technology
CoolFit anti-microbial padding
Featherweight webbing with Slimline buckle
Very well made, particularly the way the MIPS system is so well integrated.
Good comfort and ventilation.
Well made with very little of the sub-shell exposed, so likely to last a long time.
It's not the lightest in this price range, but right around the average.
Very comfortable thanks to effective ventilation and soft pads.
Although features and weight are about average, I think it's above average value based on the MIPS integration.
Tell us how the product performed overall when used for its designed purpose
Tell us what you particularly liked about the product
Integration is genuinely the best I've seen in the dozens of MIPS helmets I've used.
Tell us what you particularly disliked about the product
How does the price compare to that of similar products in the market, including ones recently tested on road.cc?
The Syntax is pretty much on par for a MIPS-equipped helmet at £89.99. The Met Vinci offers fewer vents and a less sophisticated MIPS build for 1p more, and while the Giant Strive MIPS is £15 cheaper it weighs 24g more and the finish is slightly disappointing.
Did you enjoy using the product? Yes
Would you consider buying the product? Yes
Would you recommend the product to a friend? Yes
Use this box to explain your overall score
The high quality build and integrated design mean great comfort and unhindered cooling. The price is entirely fair, too – it's very good indeed, and a solid nine.
About the tester
I usually ride: CAAD13 My best bike is: Cannondale Supersix Evo
I've been riding for: Under 5 years I ride: Every day I would class myself as: Expert
I regularly do the following types of riding: commuting, club rides, sportives, general fitness riding, fixed/singlespeed, mtb,
George spends his days helping companies deal with their cycling commuting challenges with his company Cycling for Work. He has been writing for Road.cc since 2014.
When he is not writing about cycling, he is either out on his bike cursing not living in the countryside or boring anybody who will listen about the latest pro peloton/cycling tech/cycling infrastructure projects.