Klim F5 Koroyd Ascent Helmet Item # 770976
Description
Built on the F5 chassis and adding to its engineered capability to provide all-day comfort, the F5 Koroyd adds the next level of safety and ventilation technologies to provide an unprecedented combination of protection, reduced weight and enhanced ventilation and carries the DOT certification for on-road use. Challenging long-held industry methods, the F5 is leading the way in head protection technology and providing the best possible riding experience.
Koroyd® is a next generation energy absorbing technology, engineered with a unique structure which reduces trauma levels with innovative energy management properties. when impacted the Koroyd cores crush homogeneously, decelerating the energy from the impact and reducing final trauma levels.
MIPS® brain protection system is a low-friction layer designed to reduce rotational motion transferred to the brain from angled impacts the head.
Top 3 Benefits
- Koroyd® provides controlled energy absorption properties + massive airflow benefits
- MIPS® mitigates rotational forces from impact
- unprecedented ventilation at any speed reduces fatigue
Features:
- Full Klim® karbon fiber shell
- One of the safest helmets in the industry
- Hybrid impact protection combines multiple energy absorption technologies
- Koroyd® technology
- Mipps® technology
- Dual density eps
- Extra large eye port for maximum field of vision
- Wind tunnel tested
- Fid-lock® strap closures (extremely easy to take helmet on and off)
Ventilation:
- Most ventilated helmet in the industry
- 18 Intakes and 8 exhaust vents
- Direct vent eps design
- Designed to intake air at speed / exhaust heat while at low speeds or stopped
Safety:
- Shell structure designed for maximum strength while remaining lightweight
- Neck brace compatible
- Exceeds DOT certifications
Comfort:
- Focus on fit
- Anti-microbial and anti bacterial materials
- Moisture-wicking drylex® comfort liner
- 3 Shell sizes and 3 eps sizes for the best fit and maximum comfort to fit your head like a glove
Included:
- Helmet bag
- Breath box
- Windstopper® liner
- Extra peak visor/hardware
Part Numbers for Klim F5 Koroyd Ascent Helmet
Comparison Chart
 |
 |
 |
 |
 |
|
| Model | F3 | F3 Carbon | F3 Carbon Pro | F5 | F5 Koroyd |
| Starting at | $440 | $540 | $670 | $800 | $940 |
| Designed for | Strong, light, and modern | Strong and extremely light
|
Premium protection and extremely light | Lightweight ventilation | Premium protection and airflow |
| Head Shape | Intermediate Oval | Intermediate Oval | Intermediate Oval | Intermediate Oval | Intermediate Oval |
| Modular | No | No | No | No |
No |
| Material | Fiberglass Composite / EPS | Carbon Fiber / EPS | Carbon Fiber / EPS | Carbon Fiber / EPS | Carbon Fiber / Koroyd EPS |
| Weight | 3.4 lbs | 2.4 lbs | 2.4 lbs | 2.7 lbs | 2.9 lbs |
| Venting | 13 Intakes / 6 Exhaust | 13 Intakes / 6 Exhaust | 13 Intakes / 6 Exhaust | 18 Intakes / 6 Exhaust | 18 Intakes / 6 Exhaust |
| Certification | ECE-22.05 | ECE-22.06 | ECE-22.06 | ECE-22.05 | ECE-22.05 |
| Made in | China | China | China | China | China |
Reviews
Rated 4 out of
5
by
Timber from
One season in and like it
Like the helmet. Visor does not hold up to the slightest fall from bike seat to grass cracked in half. Already gone through both visors and neither where from a crash. For such an expensive helmet I would expect a more durable visor. My $150 dollar Fox helemthad more durable visor. Very disappointed
Date published: 2020-06-06
Rated 5 out of
5
by
Singletracker from
Great helmet
So far I'm loving the helmet. Having the ability to put in gortec liner is awesome in Canada when the weather it's below zero. The magnetic chin strap is impossible to get used to but hopefully I will soon. Helmet so far is holding up nicely
Date published: 2019-11-18
Rated 5 out of
5
by
jasonJSN from
Excellent fit and safety features
I bought this helmet as an upgrade over my Klim F4 DOT helmet size XL. The helmet fits me way better than the F4. I love the FidLock strap closure. My Oakley Line Miner googles and my Klim Radius goggles fit perfectly. I was hoping the F5 would be lighter but overall I'm very impressed with it. Great look, quality, and safety.
Date published: 2018-05-14
Rated 5 out of
5
by
Joe N from
Super cool
Bought this first for the air flow and then found out about all the safety features.
I ride hot and then get over heated and start takimg bad lines and slowing down. This helmet blows a ton of air, even at low speeds. The aerodynamics are great. 120kmh and mo buffetting. Even stopped it allows heat out. Last dirt bike ride I left it on when cutting back branches. Any other helmet it would be off asap. Buckle is amazing too.
Date published: 2018-05-09
Rated 5 out of
5
by
Big Zappy from
Unbeatable - For Certain Needs
My riding is strictly road use. However my primary helmet, a Schuberth full face is way too constricting and HOT during the summer months. So I bought this helmet to avoid having to towel down after removing the Schuberth.
It is a fantastic helmet for ventilation!!! Even in 30+ degree weather with soaring humidity I didn't suffer from the usual overheating and sweating. An added perk is a field of view that is pretty much unrestricted. In city traffic that is great a bonus.
The downside of this helmet and this is only applies if your going to use it on highways, is it is very loud. Obviously this is a result of the very large the ridiculous amount of holes/vents but adding to the noise level are the large voids right at the ears. Before, you say that's a fitment issue let me say that the helmet fits perfectly at the forehead and I can fell the liner in full contact everywhere else but the ears. Earplugs fix this problem at little expense and I'm will to go through the hassle of using them as the payoff in cooling is worth it to me.
Date published: 2021-09-09