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Valegro Helmet

3.8 out of 5 stars
5 Reviews
$175.00 - $250.00
Up to 30% off


Size Chart


Why We Like The Valegro Helmet

We grabbed our first glimpse of the Kask Valegro Helmet on the heads of Team Sky riders at the 2017 Tour as they donned them on the hottest mountain stages where aerodynamics takes a back seat to light weight and ventilation. Since that time, we've been patiently waiting for Kask to bring the helmet to the market for us mere mortals. The team that's known for its obsession with marginal gains once again makes—ahem—headway in helping design a product that in the end, we all benefit from.

Kask engineers carefully shaped the profile of the Valegro's polycarbonate shell and verified the results in the wind tunnel, creating exceptional cooling performance and heat exchange, the perfect recipe for a helmet to keep your head cool on climbs in July. The Valegro offers its impressive cooling through 37 vents and the new breathable and quick-dry pads. This 5mm thick 3D DRY padding is anti-static and antibacterial and has a multi-layer open cell construction process so it wicks away sweat while remaining extremely comfortable. And because your perspiration evaporates quickly, less humidity is formed so the temperature remains more constant.


  • Team Sky's go-to helmet on hot stages featuring climbs
  • In-Mold shell increases structural integrity
  • Verified in the wind tunnel for cooling and heat exchange
  • Adjustable Octo Fit cradle keeps a snug hold on your skull
  • 37 ventilation channels encourage air flow and keep you dry
  • Anti-odor padding offers all-day comfort while wicking away sweat
  • MIT technology claims to improve the helmet's safety
  • Eco-leather chin strap offers long-ride comfort
  • Item #KSK000N
CE EN 1078, Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older
Fit Adjustment
Octo Fit
37 vents
Manufacturer Warranty
limited lifetime
Claimed Weight
[small] 6.3oz
Shell Material

Overall Rating

4 based on 5 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 1 reviews
3 Stars - 1 reviews
4 Stars - 1 reviews
5 Stars - 2 reviews

Fits True To Size

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

What do you think about this product?


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5 out of 5 stars

February 24, 2024

Fits Well and Comfortable

I've used it several times
Size Bought:
5' 10"

I have used Kask Helmets for the past 10 years and love them. Fits great just like all my old ones. I have always loved the leather strap on the helmet one of the selling points for me since I really dislike the fabric straps on my chin. Bought Medium. 5'10" 185 lbs 32 waist 32 Length 42.5 Shoe Size 7 1/4 (22.75 Circ) Head.

Ryan R
2 out of 5 stars

February 28, 2022

If Possible, Try In Person

I returned this product before using it

If possible, try it in person before ordering online to make sure it's the right fit for you. Used the sizing chart and the helmet fit perfectly however as others have mentioned, the side straps' length/positioning are not adjustable and were pulling up and into the bottom of my ear lobes. I purchased a size M and have "normal-sized" ears. I could see how this would be a great helmet, especially in warm climate riding, however the lack of customizable fit makes it a bit of a crapshoot

Shawn H

Originally reviewed on Backcountry.com

3 out of 5 stars

June 7, 2021

Not A Good Fit For Me

I returned this product before using it
Size Bought:
S & M

As other reviews mentioned, the side strap "V" length and position are not adjustable, so it may fit very well, or not so well, depending on your head size and shape. For me, the V was too long, placing the buckles right at my jawline, which was not comfortable. The thick synthetic leather chin strap is a nice touch, but can't be easily shortened, unlike thinner nylon straps. When I tightened the chin strap the extra strap stuck straight out about 2 inches past the retaining loop, not a great look for a helmet strap. As for size, I was just at the size break for S/M, but the small was way too small, definitely order the medium if you're between sizes. Weight is just ok for a helmet advertised as super-light. The small is 230 grams, the medium is 250 grams. While still light, these weights are significantly higher than the weights you'll see in many reviews for the lighter EU helmets, made to a lesser safety standard than the US CPSC standard. I guess an extra 40 grams is worth it if it saves your noggin. This is a stylish, well ventilated and well made helmet, but the fixed side straps were a deal breaker for me. There's certainly a lot less fiddling to get the helmet fitted, but only if those fixed straps work for you.

Tim-CC T
4 out of 5 stars

January 11, 2021

Extremely well-made, but not perfect.

I've used it several times
Size Bought:
6' 1"

I've never owned a Kask helmet before. Over the years, I've owned helmets from Giro, Specialized, Bell, Catlike, Uvex, Orbea, and Mavic. None of those helmets were poorly made, and they all seemed to be made to pretty much similar standards, quality-wise. I was surprised, then, that this Kask helmet is, to my eyes, clearly manufactured to a higher standard. The polystyrene mold lines and in-shell molding are very clean and crisp, with no apparent misalignments. The graphics are all on straight and are either dyed/painted or sublimated on. The straps feel of very high quality with clean, crisp stitching. Really well-made. I got this helmet to replace/supplement a Mavic Comete helmet, that I just bought several months ago (which itself was a replacement of a quite old Orbea Odin). The Comete was fine, but whether due to the implementation of the MIPS or otherwise, I found it quite hot (despite its claims of excellent airflow) and that its browpad would quickly become saturated and dump significant amounts of accumulated sweat into my glasses, even on relatively cool days (think mid 70s). It was annoying enough that I got the Kask as a lightweight, long and hot ride helmet. Despite the Kask helmet not having a browpad (it does come with an optional stick-on pad, which I've not used), the airflow off the forehead keeps my glasses relatively dry, other than the occasional small drip when its really hot. The helmet is very light and very well ventilated. The lightest and best ventilated helmet I've ever owned, I think, though the Catlike and S-Works helmets were close. The pleather chin strap is surprisingly comfortable and very easy to use and adjust. An added bonus is that it stays where it is adjusted, unlike nearly all my other helmets. The helmet's y-straps just clear my earlobes and lie flat perfectly. While it works for me, I can see the non-adjustable y-straps potentially being a problem for someone with a larger head (I measured my head at about 59 and 3/4 cm around and am wearing a size L). But, the helmet is not perfect, even for me. The retention system's vertical adjustment does not lock into place, which means that every time I put on and take off the helmet, it needs to be adjusted. Sometimes, when I go from just cruising on the hoods to sprinting in the drops (and thereby changing my back/neck angles) I hear a click or two of the vertical adjustment moving. Also, as others have mentioned, the lack of a brow pad and the thin padding does lead to some pressure points at the front/top of my head. About 20 miles into my first ride with the helmet, it was a real problem, until I backed off the dial of the adjustment system by a click or two. That resolved the problem on that ride, and pretty much every ride since. As a result, the helmet doesn't feel as "locked down" as many other modern helmets, but it still feels relatively secure on my head (and doesn't seem to shift or move just in normal riding).

William H