Product Colors and Sizes

  • Black Friday product
  • New Deal product
  • Cyber Monday product
  • Clearance product
  • Deal product
  • Best Seller product
  • Ecodesign product
  • New product
  • Staff Pick product
  • In The News product
  • Innovation product
  • product

Btwin CBH500 Bike Helmet

Sale price: $34.99 Regular price:

Wearing a helmet is no longer an inconvenience! This ventilated, comfy helmet easily adapts to the shape of your head using its adjustment dial.Lighting option for more peace of mind.

Color: Select a color
Size: Select a size
Sale price: $34.99 Regular price:

Free shipping over $49

Free pickup

San Francisco, 735 Market St. Options

Select an available color and size to see options.

About this item:

  • 2-year warranty included on all helmets
  • Your safety matters to us. We only sell brand new helmets
  • Please note: Helmets are not eligible for return
Model: 8609519

Product Videos

Product Features

A photo of the Btwin CBH500 Bike Helmet in use

Btwin CBH500 Bike Helmet | Do you want protection on your regular and recreational rides around town on roads, on cycle paths, and in parks?

Wearing a helmet is no longer an inconvenience! This ventilated, comfy helmet easily adapts to the shape of your head using its adjustment dial.Lighting option for more peace of mind.

Shock protection

Certified CPSC1203 and ASTM F1447.

Anatomical design

Free your head with the adjustment dial and adjustable straps.

User comfort

Pamper your head with the washable, breathable foam inserts.


The optional lights mean you'll stand out from the crowd.


Get some fresh air with the 11 vents!

Questions & Answers

Product Customer Reviews

Skip to reviews
4735 Reviews
Write a Review 

Btwin CBH500 Bike Helmet,black
Filtered by reviews Loading reviews…
It’s a no-brainer!

See what I did there? This helmet is designed so your head stays cool allowing air through the vents. The hi-viz colour helps keep you being seen.

icon-circle-checkmark verified purchase

Hello Chris,

Thank you very much for your product review. We are so glad to hear you're enjoying this cycling helmet.


Works fine.

icon-circle-checkmark verified purchase

Hello Alvaro,

Thank you for your feedback on this helmet.

See you soon in store !

Reasonable price

Perfect fit for my kid with reasonable price

icon-circle-checkmark verified purchase

Hi Candy,

Thanks again for sharing your feedback, we really appreciate customers like you! :)

Bike helmet

I like it. Thanks

icon-circle-checkmark verified purchase
Helmet for rollerskiing

Bought this model because the course I am on uses them. Helmet is black rather than yellow. Only caveat is the sticker on the back looks like it should be removable but isn't - I ended up using Sticky Stuff to get it off.

icon-circle-checkmark verified purchase
Good quality

Good quality

icon-circle-checkmark verified purchase

Very comfortable highly recommend it

icon-circle-checkmark verified purchase
Nice helmet

Good bright colour, good fit.

icon-circle-checkmark verified purchase
Light and protective good price.

I bought this helmet after trying several on for size, weight etc. This vibrant colour makes me feel confident that I can be seen especially combined with the additional add on light.

icon-circle-checkmark verified purchase
Great helmet

Good fit. Love the bright colour.

icon-circle-checkmark verified purchase

icon-circle-checkmark verified purchase
City 500 helmet

Great fit and top value

icon-circle-checkmark verified purchase
Uncomfortable helmet

I didn't take enough time sitting in the store with the helmet on and unfortunately on my first ride I developed a headache within 20 minutes. I tried to return the helmet the day after I bought it, to demonstrate that I only wore it for a very short time, as I saw another customer was allowed to return his but I was refused. the policy has changed and bicycle helmets cannot be returned for poor fit since they are safety equipment. Fair enough. Basically unless your head is oval shaped like the helmet then you shouldn't buy it as the adjustment only makes the space for your head more oval. Really, I'd recommend helmets with a fully adjustable inner plastic cage unless you've spent enough time in the store with it on to be sure it suits the shape of your head. I rushed this purchase and regret it, fortunately it's not too dear a lesson learnt.

Thank you for your comments regarding the helmet. Regarding our returns policy it is true to say that safety equipment cant be returned if they are unwanted but if the item is not satisfactory in use, then this is a separate issue. We would in this case offer an exchange and the returned helmet would be destroyed.
Peter Lazarus, National Cycling Manager, DECATHLON
Bike helmet

Visible which is the main priority and can clip flashing rechargeable light at the back of the helmet

icon-circle-checkmark verified purchase
Uncomfortable helmet

Unfortunately I feel I picked badly in choosing this helmet . I have worn it twice and each time it seems to be pressing on my skull and gives me a headache. I have never experienced this with any other helmet. There is limited padding on the inside compared to other helmets.

icon-circle-checkmark verified purchase
If you find the helmet uncomfortable, please return it to store with your receipt for an exchange.
Peter Lazarus, National Cycling Manager, DECATHLON
Skip to reviews

Additional Product Information


Main lining: 100.0% Polystyrene ; Webbing: 100.0% Polypropylene ; Shell: 100.0% Polycarbonate ; Buckles: 100.0% Polyoxymethylene ; Foam: 100.0% Polyurethane

Certified cpsc1203 and astm f1447.

Compliant with CPSC1203 and ASTM F1447 helmet standards, which define the tests and methods applicable to cycling helmets.


If you're between sizes, choose the bigger size.Choosing the right-sized helmet and getting the fit right is essential. For kids, never buy a helmet that is too big on the assumption that they will grow.M: 20.9” – 22.8”L: 22” – 24”


For maximum protection, the helmet should be in close contact with your head, and the fastening system must always be correctly adjusted without being too tight around your forehead. When the straps are properly adjusted, the helmet should not slide forward, back, or sideways. For this reason, there are several sizes available. We recommend that you try on different sizes to find the best fit.


M: 9.9 ozL: 10.2 oz


This product has a hook for attaching a Vioo Clip, an LED light that can be clipped on anywhere and unclipped in an instant.With a red or white light that can be used in continuous or flashing mode, you are clearly visible from up to 120 yds away. Accessories, such as mounted cameras, that have not been approved by the manufacturer may damage the helmet's features and affect its performance.

Main materials

EPS liner: Expanded polystyrene Outer shell: Polycarbonate


We recommend that you replace your helmet after 5 years starting from the manufacture date (shown on the label on the inside of the helmet).As damage may not be visible, we recommend discarding and replacing any helmet that has suffered an impactUsing solvents or other aggressive products could affect your helmet's effectiveness.

Storage instructions

Do not expose to high temperatures (over 122°F, particularly on your car's rear dash), and store in a dry place away from direct sunlight.



Superior quality. Unbeatable prices.

For 40 years, Decathlon has delivered the best value in the retail sports industry by offering high-quality, sustainable and cost-effective products.