Giro Syntax MIPS Adult Road Bike Helmet - Matte Black/Bright Red (2021), Medium (55-59 cm)

I stumbled across the Syntax while searching for a replacement for my Giro Revel. The Revel is not a bad budget helmet, but I'm riding farther and faster. I know Mips is debatable but it became part of my search.The Syntax is a great midrange unit. It's smaller than most helmets I've tried, comfortable on my bald head, fits, and is well ventilated. My photos are on 12x12 floor tiles. Noticeable differences over budget are: foam density, interior padding, the straps are similar but the dual adjustment retention system is better, and it sits around my head and not just "over" it.If I must gripe, there was glue in/around some of the vents, and there is not glasses storage.The subdued colors, branding, and texture will match any kit in my closet. I'm very satisfied. I'll update after a full season on the road.Update: Glasses will fit or not fit based on design. My Siroko K3S fit securely.After almost 2k miles it's still great.The small loops on the rear have reflectors on them. I never noticed.

I love Giro helmets and this one is great! The matte black goes with everything. It fits well and has a 2 way adjustment on the back of the helmet. I wear a ponytail and it loops through by the ratchet adjustment easily. The helmet has great ventilation. My only complaint is that if you don't wear headbands or cycling hats it leaves a big area of your forehead open to view. It looks sort of funny and would leave a funny tan line if you care about that sort of thing.

Great helmet for the price. Great brand and it’s MIPS helmet. I have needed a helmet for a while. But I have a giant head, so I really need a true XL helmet to fit my melon. The Giro XL helmet fits the skull with room to spare.

I got hit by a vehicle last week while riding my bicycle and my three week old helmet saved my life. I did end up with four broken ribs, a collapsed lung and a concussion, but am so thankful for such a great product! God bless you for making such a wonderful helmet! I will get a new one shortly.

I have another of these I use on my road bike. I bought this for mountain biking. Great airflow. Easy adjustability. MIPS. Mainly, it fits, which most helmets don't. I have a large head (7 7/8 hat size) that is egg-shaped in cross section (long front-to-back, kinda normal side-to-side). Most XL helmets are shaped like bowls, leaving huge gaps on the sides if they fit in front and back. This one fits, is comfortable, and offers most of the safety features I want (better coverage of the occipital protuberance at the back would be nice). I'd buy another and recommend it to those with similarly strange skull shapes.

I've been in an accident with Giro and the helmet totally protected my head. Only had a slight neck tightness (b/c your head bounces back off the ground but your muscles tighten up on impact)I prefer MIPS, but I've had Giro w/o it and it works just fine.I like their various colors, but they do sell out of them very fast so you have to jump on them.The thing I don't like is they have no warranty like Bontrager about returning them within a year to be studied if you crash with them. But I'm vain and go for looks and these look nice.

MIPS alone is worth buying a new helmet if you have an old one. It makes a nice snug fit without any hassle. The helmet is pretty streamlined and light enough to not really be considered with long usage. There may be slightly cheaper options, but for the price, you get a helmet that doesn't stand out too much and great fit with MIPS.I haven't used this extensively and I'd be interested to see how this fairs in hot summer months (or really cold ones, though the coldest it gets here is 50F or so). Though otherwise, it has been great.One caveat is that while it does fit well and is easy to get snug, there could be a bit more cushiony. Though I figure for MIPS to work, you need a pretty rigid substructure (for lack of a better word) for the outer shell to slide over and not transfer pressure.

Ok, so I wrote a really long review on this Giro Syntax helmet, Large, matte red/matte black; then I set my phone down for 15 seconds and the Amazon app went “back” and deleted it. Wow. Gut punch.Not gonna start over, but, let me say: this is an amazing road cycling helmet:- best fitting helmet I’ve ever had. I have a big ol’ head and the Large size in this thing feels like a fitted baseball cap on my head. I’ve had 4 road cycling helmets over 10 years and this is the best fitting, by far. There are no pressure points or hot-spots at all with this thing.- the matte black and matte red finish is striking af. I always think the newest helmet I’ve bought is the best looking, but.. damn.- Roc Loc 5 is amazing. I had a Bell helmet at one point that had a similar “twist the knob” adjustment system, and it was nowhere near as accurate as this thing. It’s millimeter perfect. You can unbuckle the chin strap and it’s still stuck to your head.- I had a 2010-11 era Giro Atmos and this helmet is on another level. That was a $200 helmet that came with a carrying case. It was 40g lighter, but the fit was crap compared to this MIPS helmet. I’d take this one 10 times out of 10.Anyway, that’s the gist of it. For $120, or whatever, this thing is a great value. I highly recommend it.

My head measures just under 58cm and I ordered size medium, which was the perfect size for me.I am really surprised by some of the reviews suggesting that the chin strap is really difficult to adjust.The helmet does come with instructions on how to ensure a comfortable fit. Following these instructions I had no trouble adjusting the straps to fit comfortably around my ears and under my chin. The micro adjust button only needs small turns to properly adjust the fit around your head/forehead.I find this helmet to be very comfortable to wear. It is light and very well ventilated.I wouldn’t hesitate to buy this again.

I chose the large size to fit my 60cm head wearing a balaclava. There's room to spare. I like the black with red side accents, looks fast. Nice low profile, doesn't give you that knob like thing perched on your noggin look. Ventilates extremely well without whistling. You can't stick your sunglasses in it for storage.

Great helmet. I ordered extra large for a big-headed bike rider and it fits him perfectly. Light and comfortable. One small complaint: I ordered the helmet in white/ silver, and they sent a grey/ black one (box label said white/ silver though). I kept the grey/ black to avoid the hassle of a return.

The fit is excellent and locks down with the adjustable dial at the back. No pressure points at all. It's light and affordable and looks great. The many vents also make it cooler with lots of airflow.

Very good helmet. Double face tape doesn't stick well so I can't attach my mirror. Quick shipping. Good experience.