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Kask Protone Helmet

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SALE: $224.96ea.
MSRP:$299.95
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Backorder: This item is currently out of stock but is available to purchase today as a backorder. The expected availability date shown above is our best estimate as to when it will be shipped to you, but this date is subject to change based on our receipt of this item from its vendor. Shipping in the continental US is free for all backorder items (for international orders, our customer service team will contact you when the item is available to ship). Your credit card will not be charged until your item ships (Paypal requires payment up front, but you can cancel for full refund). Anytime prior to shipment, your backorder can be cancelled by contacting our customer service team.

The Kask Protone Helmet's sleek profile was designed with the aid of computational fluid dynamics software to create a shape that retrains its efficiency in the wind through all head angles. The result is a helmet that's quiet and low-drag in any position on the bike, instead of merely touting numbers calculated in a wind tunnel under controlled conditions.

For a highly personalized fit, Kask's Octo Fit retention system features a rubberized dial tension adjuster, plus vertical adjustability and movable rear cradles. The Coolmax® lining has an antimicrobial treatment, and the chin strap is made from eco-leather that's washable along with being super soft to prevent irritation.

Available in multiple sizes and colorways. A helmet storage bag is also included. Made in Italy.


Sizing:

  • M - 52-58 cm – 20-1/2 - 22-7/8 Inches
  • L - 59-62 cm – 23-3/8 - 24-1/2 Inches
SML
Head Circumference19½"-22"20½"-23"23¼"-24½"   
Ordered by Most Relevant First
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Reviewed 8/6/2018
by Pops
Overall Rating
Best helmet yet.

The first thing I noticed when I put this helmet on was how light it was and how it fit perfectly to my head. The chin strap is extremely comfortable. Out on the road I was struck by how quiet and how well ventilated the Protone really is - you totally forget you have it on. This is one extremely well engineered, aerodynamic helmet. It looks fantastic and doesn't interfere with my sunglasses at all. My only issue is the price. I got it on sale but still it's very pricey hence the value rating. If you can afford it, get this helmet. It's a quantum leap forward from my old Giro Atmos helmet.

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Reviewed 7/16/2018
by Anonymous
Competitive Racer
Value Rating
Overall Rating
My head is safe

Best price

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Reviewed 7/2/2018
by DaveEye
Cycling Enthusiast
Vancouver, BC
Value Rating
Overall Rating
Quantum Leap

The first thing I noticed when I put this helmet on was how light it was and how it fit perfectly to my head. The chin strap is extremely comfortable. Out on the road I was struck by how quiet and how well ventilated the Protone really is - you totally forget you have it on. This is one extremely well engineered, aerodynamic helmet. It looks fantastic and doesnt interfere with my sunglasses at all. My only issue is the price. I got it on sale but still its very pricey hence the value rating. If you can afford it, get this helmet. Its a quantum leap forward from my old Giro Atmos helmet.

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Reviewed 7/5/2018
by nycracer
Competitive Racer
NYC
Value Rating
Overall Rating
Lightweight, reassuringly snug fit

I race with this helmet, as do many others this season. Upon trying it, I immediately understood the Protone's popularity. It's very sleek (looks great from any angle) and lightweight, and the tightness adjustment system feels like it's cradling the lower back of your head - a reassuring factor as you're cornering at speed. Very happy with this helmet.

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Reviewed 6/29/2018
by Anonymous
Overall Rating
I have owned several helmets and didnt really need another one, but made the mistake of trying on a friends newKask Protone and I had to have one. This is the most comfortable helmet yet and now that

Best in comfort, style, and ventilation. This is my 7th helmet and I ride in Phoenix in the summer.

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Reviewed 6/2/2018
by Dimitrios
Casual Cyclist
Florida
Value Rating
Overall Rating
After recieving my replacement, it is top notch.

I recently received a Protone with a small crack. It could be from shipping damage, who knows. Today, I got my replacement, and it is perfect!!!! I am happy with the service. They shipped my replacement, before I even took my defective helmet to a UPS store. I will buy from you again. Thank you for great service!

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Reviewed 5/26/2018
by Anonymous
Overall Rating
Nice upgrade

Protone kask helmet has a nice feel. Sizing is true to size and fits comfortably well compared to my old helmet. Nice upgrade and would definitely recommend it to my friends. Worth the bucks!

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Reviewed 7/6/2017
by Anonymous
Cycling Enthusiast
Santa Monica, CA
Value Rating
Overall Rating
1 of 1 customers found this review helpful.
Great Ventilation and Fit!

I have an enormous skull and this is a great fit, which is a rare treat. Cool and quiet. Love!

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Reviewed 3/12/2018
by GoMariners
Cycling Enthusiast
Seattle, WA
Value Rating
Overall Rating
Awesome Helmet

Great fit. The price is the lowest I can find comparing other website shipped from UK. The shipping is lightening fast.

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Reviewed 3/8/2018
by Anonymous
Cycling Enthusiast
Detroit
Value Rating
Overall Rating
1 of 1 customers found this review helpful.
Excellent helmet, sits low and conforms to your head, very stylish as well

Excellent helmet, sits low and conforms to your head, very stylish as well. The Kask Protone is a high quality helmet, very adjustable and fits very well on your head. It has a low profile and feels very snug yet comfortable while wearing. Lastly, it just look great while wearing... the best helmet I've owned. The price is well worth it, especially from Biketiresdirect.com

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Reviewed 2/22/2018
by boronsteel
Cycling Enthusiast
San Diego, CA
Value Rating
Overall Rating
1 of 6 customers found this review helpful.
Great helmet if it fits

If the helmet fits and the fit will not compromise your safety in a crash then it is a worthy investment. Of course, you would not know if the helmet is designed to protect your head until you crash and you do not want to do that to test it. My biggest complaint is I could not use it and returned it because if it is tight enough I would get a headache and if it is too lose it will not serve its purpose. The contour of the helmet is not compatible with my head and I could not get the right tension to keep me headache free and happy rider. The buckle and strap system is one of the best if not the best on the market as the leather strap will not irritate your skin and throat while riding, eating and drinking. Like all helmets and shoes, if the fit is not good do not use them even if you get your hands on a free one. It can be dangerous and quite uncomfortable in the long run!. Kask makes great helmets only if the fit is right! I have tried other models from Kask and unfortunately none fit me to warrant the investment. Some of them have too much plastic in the back I could not put on my Rudy Project (Rydon) glasses as the plastic in the back of the helmet was obstructing the ear pieces from sliding through and staying in place. .

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Reviewed 2/10/2017
by WestchesterBiker
Competitive Racer
Westchester, NY
Value Rating
Overall Rating
5 of 5 customers found this review helpful.
Best helmet I've used to date - comfort, speed and looks - this has it all.

Still in the early stages of using my new Kask Protone. Initially drawn to it by positive reviews from ride buddies. Compared to my previous helmets I can tell and feel that this is made with a view to cutting the air efficiently. It is comfortable with good venting and a high quality retention system, which on a ride lasting several hours on what could be a hot day, is critical. My previous helmet looked like a mushroom on my head - this does not. Plenty of flexibility in the retention to accommodate cold weather skull cap or liner. Sunglasses fit without problems. My only issue is that it feels a bit too snug on my forehead which I expect is more a function of my head shape rather than being any sort of design flaw.

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Reviewed 2/8/2018
by Anonymous
Cycling Enthusiast
Sacramento
Value Rating
Overall Rating
Great helmet...light and fits properly

Purchased this helmet for road use as well as some triathlon races.

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Reviewed 1/13/2017
by Bikebaker
Cycling Enthusiast
Lodi, CA
Value Rating
Overall Rating
1 of 1 customers found this review helpful.
Sleek Modern Helmet

I use this product for every bike ride, short or long. It's stylish, comfortable and different than all others. I have received many compliments.

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Reviewed 1/9/2017
by Kevin
Tarzana
Overall Rating
1 of 1 customers found this review helpful.
Proton fits like a glove

I tried Giro first, but found the fit isn't for my head shape, the giro helmets are for rounder type heads, my head is thinner on the sides even though I wear xl helmets. The proton fits my head like a glove, even, and balanced. It's ducts keep my head nice and cool on hot days. During 50f days, it was too efficient, making my head cold, but I should have worn something underneath the helmet to cut the wind. I've had a ton of helmets over the last 30 years, and although it isn't the lightest, it fits the best!! Being aerodynamic, it reduces air drag in fast descents. I always catch my friends on descents, not sure what percentage is attributed to the helmet, but I'm sure it contributes in reducing drag.

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Reviewed 1/9/2017
by Turre
Competitive Racer
Baja, Mexico.
Value Rating
Overall Rating
1 of 1 customers found this review helpful.
Great aero helmet

This helmet is light and good looking. Kask makes quality, light and fancy cycling helmets.

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Reviewed 12/29/2016
by Gryder
Cycling Enthusiast
Irvine, CA
Value Rating
Overall Rating
3 of 3 customers found this review helpful.
Great looks, great fit and aero!

I was in the market to replace my Giro Synthe that I had to trash because of crash caused by a SUV cutting me off. I've always owned Giros but they never quite fit me right. I have a 59cm circumference head so according to Kask sizing, I should be wearing a large but the medium fits me great. I have a more round than oval shape head so that maybe the reason. Both the helmet and chinstrap are way more comfortable than my old Synthe. I love how the chinstrap lays perfectly flat against your face. That has to save a watt or two. ,-) I do have one minor quibble, my POC sunglasses do not fit that well in the air vents. Not a deal breaker but it's the reason I gave it 4 stars instead of 5.

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Reviewed 1/22/2018
by EDUEE
Alabama, U.S.
Overall Rating
Great Satisfaction

Fit perfect and lightweight, really confortable during the rife and excellent quality.

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Reviewed 1/12/2018
by Anonymous
Cycling Enthusiast
Toledo, oh
Value Rating
Overall Rating
Comfortable, light weight helmet, fits great.

Protone is used for road riding and mountain biking. I have used it with a liner for winter riding. Best feeling helmet I have owned. It replaced a Kask Mojito.

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Reviewed 12/14/2017
by stoph
Cycling Enthusiast
Fort Myers, FL
Value Rating
Overall Rating
just right

This is my new cooler weather helmet. Excellent aerodynamics with not a lot of wind noise around the ears, so it is easier to hear traffic. Looks good in matt black, already received several compliments. Easy to adjust.

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