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Giro Montaro MIPS Helmet
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Item # GIR00AH

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  • Matte Black/Lime/Flame, S ($74.97)
  • Matte Dark Red, S ($112.46)
  • Matte Dark Red, M ($112.46)
  • Matte Dark Red, L ($112.46)
  • Matte Vermillion, S ($74.97)
  • Matte Black/Gloss Black, S ($74.97)
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  • Matte Frost, L ($112.46)
  • Matte Black/Gloss Black, XL ($74.97)
  • Matte Sonic Psych, S ($112.46)
  • Matte Titanium/Flame, S ($74.97)
  • Matte Sonic Psych, L ($112.46)
  • Matte Blue/Lime, S ($112.46)
  • Matte Blue/Lime, M ($112.46)
  • Matte Blue/Lime, L ($112.46)
  • Matte Olive, S ($74.97)
  • Matte Black Riptide, S ($74.97)
  • Matte White/Lime, S ($74.97)
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Item # GIR00AH


A no-brainer.

Your weekend plans might include pedaling through long, winding climbs, snaking along exposed ridgelines, and flying down wild, challenging descents. If they do, ride with Giro's Montaro MIPS Helmet to protect your control center without weighing yourself down. Designed for long days spent on the trails, the Montaro is constructed with a durable In-Mold polycarbonate shell surrounding an impact-absorbing EPS foam body. MIPS, or Multi Directional Impact Protection System, is added to the innermost layer of the helmet in the form of a thin lining that rotates slightly upon impact to absorb the brain-damaging rotational energy created in certain crashes.

Beyond safety, Giro ensures the Montaro won't slow you down by designing it to integrate with your other riding gear, including a built-in camera mount with a breakaway design to protect you and your device in the event of a crash. Giro's P.O.V. Plus visor adjustment system allows you to reposition the visor to accommodate full goggles, and strap grippers on the back of the helmet help keep the goggles in place. To keep the helmet from feeling cumbersome on hot days and long climbs, Giro created space for 16 vents with internal channeling for efficient air flow. The Montaro is lined with hydrophilic, anti-microbial padding that absorbs sweat and, together with the Roc Loc fit system, provides a comfortable, secure fit.

  • MIPS technology
  • In-Mold construction
  • Roc Loc Air fit system
  • Goggle-compatible P.O.V. Plus visor with strap grippers
  • Built-in breakaway camera mount
  • Anti-odor padding

Tech Specs

Shell Material:
In-Mold polycarbonate
Impact Foam:
EPS foam
16 vents
Fit Adjustment:
Roc Loc Air
Full Face:
Recommended Use:
mountain bike
Manufacturer Warranty:
1 year

Size Chart


Adult Cycling Helmets
 SS/MMM/LLXLAdult UniversalWomen's Universal
Head Circumference 20 - 21.75in
(51 - 55cm)
20 - 22.5in
(51 - 57cm)
21.75 - 23.25in
(55 - 59cm)
21.75 - 24in
(55 - 61cm)
23.25 - 24.75in
(59 - 63cm)
24 - 25.55in
(61 - 65cm)
21.25 - 24in
(54 - 61cm)
19.75 - 22.5in
(50 - 57cm)
Head Circumference 20 - 20.75in
(51 - 53cm)
21.25 - 22in
(54 - 56cm)
22.5 - 23.25in
(57 - 59cm)
23.5 - 24.25in
(60 - 62cm)
How to Measure:
For best results, use a tape measure to measure around your head where your hat would fit comfortably.

Reviews & Community


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Good fit, bad pads

  • Familiarity: I've used it several times

Helmet fits well, very comfortable. Doesn't interfere with the fit of my Oakley sunglasses. As others have stated, the Velcro liner on the sweat pads is an issue, it began to pull away from the foam after an hour of use. Easy enough to replace or repair, but a very annoying issue on an otherwise great helmet.

The Perfect Fit

    I purchased the women's version for my wife, I was curious about the fit and feel with the MIPS outfitting, so I tried it on and that's all it took, I ordered one. Right out of the box this is the best fitting helmet I have ever owned, the size(M) is just right for my head shape, no strap adjustment necessary.

    Awesome price for MIPS

    • Familiarity: I gave it as a gift but have feedback to share
    • Fit: True to size

    Breathable, comfortable, and secure.
    I purchased this helmet for my husband for his birthday, and he's digging it big time. The Olive color is an awesome option for someone who likes a more subdued look but is a little bored of black and grey.
    The Giro Montaro MIPS helmet, as the name implies, features Giro's MIPS technology to keep your cranium extra safe from blows you might encounter in all directions. The fit is comfortably and true to size, and the vents are well placed to keep you from overheating.

    Feels Good, Gives Me Headaches

    • Familiarity: I've put it through the wringer

    The helmet feels fine but I found it was giving me headaches (i do not normally get). I set the retention system slightly more loose than other helmets I'm used to wearing and it seemed to have solved the issue.

    Like it so far

    • Familiarity: I've put it through the wringer
    • Fit: True to size

    This helmet has been good for me so far. It fits well, is comfortable, reasonable weight and good ventilation. I really like the blue/lime color that I bought as well. It works well with my sunglasses and sweat bands. In the past I have been either a medium or a large in helmets. In this case I had to size up to the Large. The MIPS shell does take up a few millimeters of room inside the helmet.

    My one complaint is that the pads wore out quickly. The liner peeled away from the pads revealing the foam underneath. Minor issue and replacement pads are cheap but it happened after about 2 months of riding. I do sweat a lot, but it still seemed like premature wear.

    Sweet Helmet

    • Familiarity: I gave it as a gift but have feedback to share

    I purchased this as a birthday gift for my boyfriend and he loves it. Unfortunately he has not had a chance to test this out yet due to the snow on the mountain, but should be able to soon. This being said, I only have fit and initial impressions to offer as feedback. Overall he raves about the fit and look. The large ran true to size, really light weight, tons of ventilation for those hot summer days, and while a little bit more in price the MIPS feature is great. He isn't always good about replacing his helmets when needed so I thought this feature is perfect for providing me with peace of mind. The Matte Vermilion ended up being my color choice since orange is his favorite color. It will also offer high visibility as he tends to ride after work throughout the summer. Overall I think this will be a great addition to him biking gear.

    Simple, Solid, Steezy

    • Familiarity: I've put it through the wringer

    This lid gets the triple S review score. It is extremely comfortable fitting with adjustments available if needed. Great lock design that holds the helmet snug even in the most extreme downhill conditions. Took a pretty hard slam the other day and had no noticeable complaints from the helmet in an impact scenario. It also helps that the color variants are pretty stylish. You also get mips protection for a fraction of the price of a smith forefront for example. Great helmet at a great price.

    So safe

    • Familiarity: I've put it through the wringer

    I went over the bars off of a 10 foot drop right onto my head. No concussion, not even a headache. Bottom line, this helmet works. Plus for great ventilation, and good looks.

    Like a glove!

    • Familiarity: I've used it several times

    This helmet was a wonderful purchase! I'm very happy with every aspect, aesthetic, build quality, MIPS for extra noggin protection, venting and most of all the amazing comfort. This helmet goes away while riding. Some others have stated its on the heavy side... I literally don't even acknowledge its existence on my head. It cradles the lower back of my head perfectly. I understand all heads are shaped differently, but for me it's huge win!

    This helmet kicks ass!

    • Familiarity: I've put it through the wringer
    • Fit: True to size
    • Size Bought: L

    I ended up taking a spill in my last one, and had no hesitation to come back to the exact same size and color. I absolutely love this helmet. Killer fit, ton's of ventilation, and awesome looks. Don't hesitate and pick one of these up.

    Light and ventilated

      This helmet is comfortable even after a 9 hour ride. My helmet (orange) can be spotted from the moon.

      Does the job

      • Familiarity: I've used it several times

      This helmet is super awesome. Very cool and sleek look. I feel safe with the MIPS technology. The fit is a little tight though. I recommend this for anyone.

      Given the goggle compatibility and the rear protection, would this helmet be a candidate for skiing or snow boarding? Yeah, I see the million vents, but curious to see if anyone has had the same thought. I usually wear a balaclava, special ops style, anyhow.

      Best Answer

      Hey Jon,

      This helmet isn't certified for snowsports so I wouldn't really recommend it. I'll reach out and we can chat about what you're looking for in a helmet.


      Super Solid

      • Familiarity: I've put it through the wringer

      Perfect fit. I take of the visor when I ride road and put it back on for mtb. The bolts that hold on the visor will come lose after awhile, so make sure to re-tighten them occasionally. One of mine fell out and Giro was quick to send me free replacement bolts.

      A littler tighter fit with mips

      • Familiarity: I've used it several times
      • Fit: True to size
      • Size Bought: Small

      A great helmet but with the Mips it fits a slightly narrower than there non Mips helmets.

      Looks good

        Lightweight, super chill, enduro helmet. Visor slides back nicely to fit goggles if that's your deal. Light and fashionable.

        Best in a long time

        • Familiarity: I've used it several times

        I've had the Montaro for pretty much the entire season and it's definitely the best helmet I've had in awhile. It fits well, the visor is very secure, and I never think about it while I'm riding. The only issue I've had is some wear on the fit pads.

        Solid Features, Fit Off

          I picked this up after I crashed my last helmet (a Giro Hex) and liked that it had additional MIPS feature to it. I've worn Giro for my last 4-5 helmets or so, but on mountain and road, but was surprised to find that this helmet squeezed my temples in just the right spot so that i couldnt wear it for more than 1 minute. Slightly surprising considering how well i've fit into other Giro helmets.

          I wear a MEDium HEX. Thinkin' bout getting the Montaro non-mips. Should I get a small? Bro. Thanks.

          Falling apart

            I bought this helmet a few months ago and the inner liner is pealing apart and now the side screw to the visor is stripped out. I have only used it about 10 times and this is what's happening. I wouldn't recommend it to fits good but the helmet is falling apart on me

            Thanks for the review Justin! Super helpful to get this feedback out to the community. Reach out if you have not warrantied it yet.

            Same thing happened to me. I had a bent visor out of the box, which Giro sent a replacement for. Now my liner is peeling apart. I sent a photo to Giro to see what they say. I bought my helmet in May 2017 and also used it about 10 long rides.