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Btwin Bowl 500, City Bike Helmet

Regular price: $29.99 Regular price:
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Size Guide
Sale price: $29.99 Regular price:

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Model: 8573744

Product Features

Btwin Bowl 500, City Bike Helmet is designed for

This helmet is comfortable in all seasons thanks to its removable ear protectors and visor. Adjustment dial, and insert for lighting option.

A photo of the Btwin Bowl 500, City Bike Helmet in use

Shock protection

Complies with EN 1078: field of vision, shock absorption, chin strap system, etc


Stand out from the crowd thanks to the optional lights.

Anatomical design

Free your head with the adjustment dial and adjustable straps.


Get some fresh air with the 12 vents.

User comfort

Keep your head safe with thermoformed foam

Weather protection

Choose the configuration that suits you best depending on the weather.

Product Lifestyle Image Gallery

Image Gallery

Btwin Bowl 500, City Bike Helmet,dark blue 

Btwin Bowl 500, City Bike Helmet,dark blue 

Btwin Bowl 500, City Bike Helmet,dark blue 

Btwin Bowl 500, City Bike Helmet,dark blue 

Btwin Bowl 500, City Bike Helmet,dark blue

Product Customer Reviews

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1271 Reviews
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Btwin Bowl 500, City Bike Helmet
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Stylish Helmet

Bought this as a replacement for my standard white cycle helmet and very pleased with the fit and style. It goes very well with my traditional cycle and because of that I’m much more likely to wear it. Bought another for my brother who has just taken up cycling and doesn’t wear a helmet, hoping he will now! Fit was a bit tight to start but after some adjustments feels very snug. Would highly recommend.

So comfy

very comfortable.

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Hello Gideon,

We're glad you like the product! It's not just comfortable, I find it quite stylish also :)

Thanks for choosing Decathlon, and we hope to see you again soon :)

Happy riding!


500 City Cycling Bowl Helmet - Chocolate B'TWIN

Comes up quite small so I would recommend you go for the larger size. Velcro’d padded parts in the helmet could be a little more sturdy, they come apart from the helmet far too easily. But all in all it is comfortable when fitted right.

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Recommend - Warm, comfy and safe

Highly recommend this helmet. It is so comfy and more importantly it keeps my ears warm in this cold weather which I was hoping.

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Ok. But small

I ordered a size large which should fit - I am a 59cm which is the lowest measurement for a large. It is soooo tight and awkward. Also the inner foam bits have already started coming apart. Cheap and badly sized.


Excellent, especially for the price!


Well designed and suits perfectly it’s needs!

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HI Leopold,

Thank you for the review on the  500 CITY CYCLING BOWL HELMET - WHITE

I am delighted that you like the product. This helmet is comfortable in all seasons thanks to its removable ear protectors and fixed visor. Dial for easy adjustment. There is a hook for attaching a light.

I'am glad that you're happy and satisfied with the product. Please do check out more variety of our product at

We hope to serve you again and see you around in Decathlon.

Bicycles Helmet

The helmet is comfortable and I have been using it for the past week I would like to buy the led light CL 500 that can be inserted behind the helmet but there are no stock now. Wonder when will the stock be available...

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Hi Chong Cheng

Thank you very much for sending me your reviews on "500 City Cycling Bowl Helmet - White."

I am so glad that you love our product and find it very comfortable! Our new shipment for CL 500 Front / Rear Led Light has arrived. We have added 2 more new colours for this season. Please feel free to browse our websites. Click here to view.

Keep your sharing coming!

Continue sporting and stay fit!

Worry Less Zumba More

Caroline Lee

Front Line Customer Service Adviser & Zumba Diva

Decathlon Joo Koon

Produk ini bagus banget

nyaman bagus, mau beli 1 lagi warna navy tapi habis terus , kapan datangnya ? Mana murah lagi

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Pretty cool gear"

I'm completely satisfied for this gear"its fitted to any one who whos doing outdoor sports, its pretty cool for me"

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Hat fit well.Hope it last for a year.Good if there is additional information include like expiry date.

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Hi Fauzi

Thank you for your kind review.

Sportingly, Sazali Mountain Bike Sport Leader

As expected

Good fit and comfort. Look cool and a great price. Wish they sell additional inner padding in case of wear and tear.

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Hi Peter!

Thank you for your review for the 500 City Cycling Bowl Helmet - Dark Blue!

This cycling helmet is made comfortable, thanks to the anatomic design with the adjustment dial and adjustable straps that comes with it. The thermoformed foam that is designed around the inner part of the helmet is to keep you safe from small-medium impacts. 

For prolonged product-life, we advise to keep it in a dry place away from direct sunlight!  

I hope you enjoy your purchase with us at Decathlon and see you in stores soon Peter!

Wave it Easy
Azhimy Senin
Sports Advisor
Decathlon Singapore
great helmet but tight fit

great looking helmet for city riding and more, the light adapter is plus too, quite light and ear pads keeps your ears warm during cold weather. Although it's a tight fit, I'm a 56.5cm and leaves a big red mark on my forehead.. maybe it just needs time to break in.. but it is advertise at 55-59cm?????!!! there is no way that somebody with 59cm or even 58cm will be able to wear that size helmet without modifications done to the helmet... 4 stars due to incorrect sizing

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Size Guide

Size Guide Visual

Additional Product Information



  • 100% Acrylonitrile butadiene styrene

Main lining

  • 100% Polystyrene - Expanded


  • 100% Polyester cationic


  • 100% Polyoxymethylene


  • 100% Polyurethane

En 1078-certified

Complies with the cycling helmet standard EN1078 (2012) + A1(2013). European standard defining the test requirements and methods applicable to helmets used for skull protection when cycling around town and for skating, scootering and skateboarding. The corresponding test requirements and methods cover the following aspects: construction, including field of vision; shock absorption properties; retention system characteristics.


If you're between sizes, choose the bigger size. Choosing the right-sized helmet and getting the fit right is essential. For children, never buy a helmet that is too big on the assumption that they will grow. M: 21.7" - 23.2" L: 23.2" - 24.4"


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: 15.5 oz L: 1.1 lbs


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: ABS


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 impact Using 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 parcel shelf), and store in a dry place away from direct sunlight.

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