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BELL Z20 Aero MIPS Adult Road Bike Helmet

4.6 4.6 out of 5 stars 111 ratings
Price: $109.98 Free Return on some sizes and colors
Free 7-day try-on available for some sizes and colors.
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Blower Matte/Gloss Black/White/Crimson (2021)

Size Chart
US Adult Road Bike Helmet
Brand SizeHead Circumference (in)Hat Size (in)
S20.5 - 226.5 - 7
M21.6 - 23.26.9 - 7.4
L22.8 - 24.47.2 - 7.8
Brand BELL
Color Blower Matte/Gloss Black/White/Crimson (2021)
Age Range (Description) Adult
Size Small (52-56 cm)
Special Feature Ventilation

About this item

  • FUSION IN-MOLDING POLYCARBONATE SHELL, AERO-OPTIMIZED SHAPE, & PROGRESSIVE LAYERING CONSTRUCTION - A process pioneered by Bell bonds the helmet's outer shell to the EPS foam liner to create a sturdier helmet. The process of engineering a helmet liner with variable EPS foam densities to better manage the transfer of energies after some impacts.
  • FLOAT FIT RACE (INTEGRATED WITH MIPS) & MIPS-EQUIPPED - Custom fit at the highest performance, Seemlessly integrated with MIPS and offers three-way adjustability: height, pad width and tension. MIPS stands for Multi-directional Impact Protection System, which is a leading slip-plane technology inside the helmet designed to reduce rotational forces that can result from certain impacts.
  • X-STATIC AND XT2 PADDING & SWEAT GUIDE - Quick-drying materials, woven with real silver fibers. Sweat Guide pad design pulls moisture away from the brow pad and away from eyewear.
  • NO-TWIST TRI-GLIDES & PROGRESSIVE LAYERING - Quick-adjust fasteners that help keep straps flat and properly positioned. The process of engineering a helmet liner with variable EPS foam densities to better manage the transfer of energies after some impacts.
  • SPECIFICATIONS - Small (52-56 cm), Medium (55-59 cm), and Large (58-62 cm) Sizes. Important: always take a head measurement. Head sizes and shapes can vary, even within an age range. Using a helmet that does not fit can be dangerous; Overbrow Ventilation System with 10 vents.
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Product Description

Z20 AERO
Z20 AERO FEATURES
Z20 AERO DETAILS
ROAD
z20 aero z20 stratus catalyst javelin
Z20 Aero Z20 Stratus Catalyst Javelin
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Customer Reviews
4.6 out of 5 stars
111
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3.8 out of 5 stars
12
Price $109.98 — — — —
SIZES S, M, L S, M, L S, M, L S, M, L S, M, L
TOTAL VENTS 10 VENTS 18 VENTS 18 VENTS 18 VENTS 3 VENTS
VENTILATION OVERBROW VENTILATION FEATURES INTAKE PORTS ON THE BROW OF THE HELMET TO USHER IN COOL AIR AND PUSH IT THROUGH THE AIR-CHANNEL MATRIX FOR FULL-HEAD VENTILATION OVERBROW VENTILATION FEATURES INTAKE PORTS ON THE BROW OF THE HELMET TO USHER IN COOL AIR AND PUSH IT THROUGH THE AIR-CHANNEL MATRIX FOR FULL-HEAD VENTILATION OVERBROW VENTILATION FEATURES INTAKE PORTS ON THE BROW OF THE HELMET TO USHER IN COOL AIR AND PUSH IT THROUGH THE AIR-CHANNEL MATRIX FOR FULL-HEAD VENTILATION OVERBROW VENTILATION FEATURES INTAKE PORTS ON THE BROW OF THE HELMET TO USHER IN COOL AIR AND PUSH IT THROUGH THE AIR-CHANNEL MATRIX FOR FULL-HEAD VENTILATION OVERBROW VENTILATION FEATURES INTAKE PORTS ON THE BROW OF THE HELMET TO USHER IN COOL AIR AND PUSH IT THROUGH THE AIR-CHANNEL MATRIX FOR FULL-HEAD VENTILATION
COMPLIANCE CPSC BICYCLE CPSC BICYCLE CPSC BICYCLE CPSC BICYCLE CPSC BICYCLE
MIPS MIPS-EQUIPPED - MIPS STANDS FOR MULTI-DIRECTIONAL IMPACT PROTECTION SYSTEM, WHICH IS A LEADING SLIP-PLANE TECHNOLOGY INSIDE THE HELMET DESIGNED TO REDUCE ROTATIONAL FORCES THAT CAN RESULT FROM CERTAIN IMPACTS. MIPS-EQUIPPED - MIPS STANDS FOR MULTI-DIRECTIONAL IMPACT PROTECTION SYSTEM, WHICH IS A LEADING SLIP-PLANE TECHNOLOGY INSIDE THE HELMET DESIGNED TO REDUCE ROTATIONAL FORCES THAT CAN RESULT FROM CERTAIN IMPACTS. MIPS-EQUIPPED - MIPS STANDS FOR MULTI-DIRECTIONAL IMPACT PROTECTION SYSTEM, WHICH IS A LEADING SLIP-PLANE TECHNOLOGY INSIDE THE HELMET DESIGNED TO REDUCE ROTATIONAL FORCES THAT CAN RESULT FROM CERTAIN IMPACTS. MIPS-EQUIPPED - MIPS STANDS FOR MULTI-DIRECTIONAL IMPACT PROTECTION SYSTEM, WHICH IS A LEADING SLIP-PLANE TECHNOLOGY INSIDE THE HELMET DESIGNED TO REDUCE ROTATIONAL FORCES THAT CAN RESULT FROM CERTAIN IMPACTS. MIPS-EQUIPPED - MIPS STANDS FOR MULTI-DIRECTIONAL IMPACT PROTECTION SYSTEM, WHICH IS A LEADING SLIP-PLANE TECHNOLOGY INSIDE THE HELMET DESIGNED TO REDUCE ROTATIONAL FORCES THAT CAN RESULT FROM CERTAIN IMPACTS.
CONSTRUCTION PROGRESSIVE LAYERING: THE PROCESS OF ENGINEERING A HELMET LINER WITH VARIABLE EPS FOAM DENSITIES TO BETTER MANAGE THE TRANSFER OF ENERGIES AFTER SOME IMPACTS FUSION IN-MOLD POLYCARBONATE SHELL AERO-OPTIMIZED SHAPE PROGRESSIVE LAYERING: THE PROCESS OF ENGINEERING A HELMET LINER WITH VARIABLE EPS FOAM DENSITIES TO BETTER MANAGE THE TRANSFER OF ENERGIES AFTER SOME IMPACTS FUSION IN-MOLD POLYCARBONATE SHELL FUSION IN-MOLD POLYCARBONATE SHELL - A PROCESS PIONEERED BY BELL BONDS THE HELMET'S OUTER SHELL TO THE EPS FOAM LINER TO CREATE A STURDIER HELMET. LIGHTWEIGHT INTERNAL POLYCARBONATE ROLL CAGE FUSION IN-MOLD POLYCARBONATE SHELL - A PROCESS PIONEERED BY BELL BONDS THE HELMET'S OUTER SHELL TO THE EPS FOAM LINER TO CREATE A STURDIER HELMET. LIGHTWEIGHT INTERNAL POLYCARBONATE ROLL CAGE FUSION IN-MOLD POLYCARBONATE SHELL - A PROCESS PIONEERED BY BELL BONDS THE HELMET'S OUTER SHELL TO THE EPS FOAM LINER TO CREATE A STURDIER HELMET. SEAMFLEX EARFLAPS MAKE IT QUICK AND EASY TO PUT ON OR REMOVE
FIT SYSTEM FLOAT FIT RACE - A STATE-OF-THE-ART LIGHTWEIGHT FIT SYSTEM FEATURING SEAMLESS INTEGRATION WITH MIPS, AN EASY-TO-TURN DIAL, WIDE-RANGE VERTICAL ADJUSTMENT AND PADDED WIDTH-ADJUSTABLE CRADLES FLOAT FIT RACE - A STATE-OF-THE-ART LIGHTWEIGHT FIT SYSTEM FEATURING SEAMLESS INTEGRATION WITH MIPS, AN EASY-TO-TURN DIAL, WIDE-RANGE VERTICAL ADJUSTMENT AND PADDED WIDTH-ADJUSTABLE CRADLES FLOAT FIT - A MINIMALIST, LIGHTWEIGHT FIT SYSTEM WITH AN EASY-TO-TURN RUBBER OVERMOLDED DIAL FOR ADJUSTMENTS (INTEGRATED WITH MIPS) FLOAT FIT - A MINIMALIST, LIGHTWEIGHT FIT SYSTEM WITH AN EASY-TO-TURN RUBBER OVERMOLDED DIAL FOR ADJUSTMENTS (INTEGRATED WITH MIPS)
VISOR REMOVABLE VISOR
INTERIOR SWEAT GUIDE PAD DESIGN PULLS MOISTURE AWAY FROM THE BROW PAD AND AWAY FROM EYEWEAR X-STATIC PADDING - QUICK-DRYING MATERIALS, WOVEN WITH REAL SILVER FIBERS SWEAT GUIDE PAD DESIGN PULLS MOISTURE AWAY FROM THE BROW PAD AND AWAY FROM EYEWEAR X-STATIC PADDING - QUICK-DRYING MATERIALS, WOVEN WITH REAL SILVER FIBERS SWEAT GUIDE PAD DESIGN PULLS MOISTURE AWAY FROM THE BROW PAD AND AWAY FROM EYEWEAR SWEAT GUIDE PAD DESIGN PULLS MOISTURE AWAY FROM THE BROW PAD AND AWAY FROM EYEWEAR X-STATIC PADDING - QUICK-DRYING MATERIALS, WOVEN WITH REAL SILVER FIBERS
WEIGHT 296 GRAMS (SIZE M) 305 GRAMS (SIZE M) 300 GRAMS (SIZE M) 329 GRAMS (SIZE M) 482 GRAMS (SIZE M)

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Customer reviews

4.6 out of 5 stars
4.6 out of 5
111 global ratings

Customers say

Customers like the fit, quality, weight and ventilation of the sport helmet. For example, they mention it's snug, easy to wear, good quality and that the ventilation seems better than it looks. That said, some complain about the lack of air vents for raining days.

AI-generated from the text of customer reviews

12 customers mention12 positive0 negative

Customers like the fit of the sport helmet. They mention it's snug and comfortable.

"...When tightened, it was snug and had no flop and did not create any unusual or pesky pressure point issues.-..." Read more

"Excelent helmet. Lightweight and confortable." Read more

"Well made and comfortable. I also like the lack of air vents for raining days. All that being said, it does look super bulky...." Read more

"...including Kask, Giro, and some cheap stuff and this was the most comfortable of all...." Read more

8 customers mention8 positive0 negative

Customers are satisfied with the quality of the sport helmet. They mention that it is an excellent aero helmet, with good airflow across the top of the head.

"...The air across the top of the head was good and this aero helmet should not be a issue next season when full on heat.-..." Read more

"Excelent helmet. Lightweight and confortable." Read more

"Well made and comfortable. I also like the lack of air vents for raining days. All that being said, it does look super bulky...." Read more

"Excellent aero helmet, competitive price and comfort" Read more

6 customers mention6 positive0 negative

Customers find the weight of the sport helmet very light. They also say it's easy to wear.

"Excelent helmet. Lightweight and confortable." Read more

"Great fit, light and comfy. No complaints about ventilation...." Read more

"...comfortable, I ride 4 hrs and up 2 times a week and it’s very easy to wear very light.Love it…." Read more

"...It breathes magnificently. It's light, fits nicely, and I often forget I'm even wearing it. I'd purchase this again." Read more

5 customers mention5 positive0 negative

Customers like the ventilation of the sport helmet. They say the flow through the minimal venting is sufficient and the helmet breathes magnificently. Some appreciate the lack of air vents for raining days.

"...I will agree I was riding 68 degree weather, the flow through the minimal venting was sufficient and even on a 95 degree day will suffice...." Read more

"Well made and comfortable. I also like the lack of air vents for raining days. All that being said, it does look super bulky...." Read more

"Great fit, light and comfy. No complaints about ventilation...." Read more

"...Ventilation seems much better then it looks and it is definitely fast. Fit is more generous then the Protone, but snugs up as needed." Read more

3 customers mention3 positive0 negative

Customers are satisfied with the performance of the helmet. They mention that the design is stylish but mainly functional, and that it works great in a hot climate.

"...DESIGN: The design is stylish but mainly functional. I really pay secondary consideration to style...." Read more

"...A little better. I do feel like this helmet will protect me. Function over fashion." Read more

"Live in hot climate and helmet works great. This is my second Z20 helmet replacing first due to accident. Bicycle Buys delivered as advertised." Read more

Probably fine, but parts melted (not sure how)
3 Stars
Probably fine, but parts melted (not sure how)
The helmet worked fine for about a year, then for some reason the adjustment in the back somehow melted. I have no idea how this would’ve happened. I actually don’t live in Las Vegas anymore, so I it wouldn’t be the climate. Perhaps just inferior materials? Probably not going to purchase a Bell again when Lazer, Kask, etc. offer more compelling options.
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Top reviews from the United States

Germanrazor
5.0 out of 5 stars Most excellent
Reviewed in the United States on October 31, 2021
Color: Velocity Matte/Gloss Slate/Orange (2019)Size: Large (58-62 cm)Verified Purchase
Where do you begin with helmet reviews. Well let’s start below:

- FIT: The helmet according to the sizing chart and measurements I took and ordered fit to a “T”. In fact, same sizing (large) as my Bontrager helmet. When tightened, it was snug and had no flop and did not create any unusual or pesky pressure point issues.

- AIRFLOW: While I will agree I was riding 68 degree weather, the flow through the minimal venting was sufficient and even on a 95 degree day will suffice. I wear a skull cap even in the hottest of days to soak up sweat. I read a recent review by a customer here stating it was hot and the sweat retention too much. I would suspect she does not know you should wear a under helmet cap to help reduce that drastically even in the hottest of days. The air across the top of the head was good and this aero helmet should not be a issue next season when full on heat.

- DESIGN: The design is stylish but mainly functional. I really pay secondary consideration to style. The vents are placed as well as can be to retain aero functionality but allow sufficient air to get in. Not sure if a midline vent with a slide closure on the hottest of days would benefit but maybe a consideration for a re-design by Bell for the future.

-DURABILITY: That is yet to be determined. Stay tuned. But on appearance and a detailed hand inspection, seems to be well constructed without any issues to note.

-PRICE: Insane! And it is not even the most expensive. No bicycle helmet should be over $125 ever! But to get more top features, unfortunately, you have to pay.

Is this a 5 star helmet? I would say a definite 4.5 right now. But since Amazon which I deplore on their 1 star increments without ability to take .5 off for issues, I gave benefit of the doubt. However, I will change it if warranted down the road.
4 people found this helpful
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Jorge Rincon
5.0 out of 5 stars Good quality
Reviewed in the United States on April 24, 2023
Color: Velocity Matte/Gloss Slate/Orange (2019)Size: Large (58-62 cm)Verified Purchase
Excelent helmet. Lightweight and confortable.
One person found this helpful
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RunPatRun
5.0 out of 5 stars Impressive helmet
Reviewed in the United States on July 6, 2021
Verified Purchase
Well made and comfortable. I also like the lack of air vents for raining days. All that being said, it does look super bulky. Makes your head really large. So, if you are looking for something that looks streamline, this is definitely not it. I tried the white one first, it looks like a giant egg on your head. So, I went with gray/red. A little better. I do feel like this helmet will protect me. Function over fashion.
One person found this helpful
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cesar camargo
5.0 out of 5 stars Casco perfecto
Reviewed in the United States on February 16, 2024
Verified Purchase
Excelente producto muy buena durabilidad recomendado 100%
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daniel hong
5.0 out of 5 stars Saved my head from crash
Reviewed in the United States on October 13, 2021
Color: Velocity Matte/Gloss Slate/Orange (2019)Size: Medium (55-59 cm)Verified Purchase
I liked how this helmet fit me, I've tried several other helmets including Kask, Giro, and some cheap stuff and this was the most comfortable of all.
Then I fell during crossing the railroad, and I could feel that my head hit the road pretty hard. I had bruise on knee and elbow, but I was able to walk away from it. Helmet's foam cracked, but outside was barely scratched. So I went out and bought same helmet, different color. I am confident that if I do get into an accident again, it will protect me again.
6 people found this helpful
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SS
5.0 out of 5 stars Pretty good
Reviewed in the United States on July 4, 2021
Verified Purchase
Great fit, light and comfy. No complaints about ventilation. My precious helmet was a Specialized Propero II and I can't tell much of a difference between the venting between the helmets during those humid summer days in the South.
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Amazon Customer
5.0 out of 5 stars Great product!!!
Reviewed in the United States on October 25, 2021
Verified Purchase
Excellent fit, comfortable, I ride 4 hrs and up 2 times a week and it’s very easy to wear very light.
Love it….
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Lee Gottheimer
3.0 out of 5 stars Probably fine, but parts melted (not sure how)
Reviewed in the United States on December 25, 2023
Color: Velocity Matte/Gloss Slate/Orange (2019)Size: Medium (55-59 cm)Verified Purchase
The helmet worked fine for about a year, then for some reason the adjustment in the back somehow melted. I have no idea how this would’ve happened. I actually don’t live in Las Vegas anymore, so I it wouldn’t be the climate. Perhaps just inferior materials? Probably not going to purchase a Bell again when Lazer, Kask, etc. offer more compelling options.
Customer image
Lee Gottheimer
3.0 out of 5 stars Probably fine, but parts melted (not sure how)
Reviewed in the United States on December 25, 2023
The helmet worked fine for about a year, then for some reason the adjustment in the back somehow melted. I have no idea how this would’ve happened. I actually don’t live in Las Vegas anymore, so I it wouldn’t be the climate. Perhaps just inferior materials? Probably not going to purchase a Bell again when Lazer, Kask, etc. offer more compelling options.
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Customer image
Customer image
One person found this helpful
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