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500 Kids' Mountain Bike Helmet 4-15

Regular price:

Sale price: 14.000 KD

Special product, Innovation Special product, New Release Special product, Sale End series Personalize me Eco-design Same day delivery

Ride safely! This helmet offers head protection for children and teenagers, aged 4 to 15, when they're mountain biking or cycling on the road.

This helmet is light and comfortable: perfect for mountain biking. It's also well-ventilated. Adjustable, so you can change the fit as your child grows. The removable visor protects from tyre spray.

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Sale price: 14.000 KD

Regular price:

Product Features

A photo of the 500 Kids' Mountain Bike Helmet 4-15 in use

Impact protection

In-Mold Microshell polycarbonate shell; complies with standard EN 1078.


Rear dial to adjust the head size and pre-set side straps.


19 vents


Weight: 270 g in size S

Product Reviews

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1579 reviews

500 Kids' Mountain Bike Helmet 4-15
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Smart helmet

I was really impressed with this helmet. The design is smart and the fit is great. All for a super price too, can't argue! Would definitely recommend!

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Mr R. Westall

Very good and helpful staff

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This matches the bike and fits great a super product

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Kids MTB helmet

Got this for my 6 year old niece as she got a new mountain bike for Christmas.Fits well and hopefully will provide protection if needed

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Kids safety helmet

Great price. Quality product. Excellent customer service thankyou.

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Hi Anthony,

Thank you so much for your kind words following your visit.

Have a great day!


Sports Advisor (Customer Service)

Decathlon Wednesbury

Decathlon UK Limited. Company number: 03140144. VAT number: GB679262296.

Registered office: 9 Maritime Street, London, SE16 7FU.

Birthday gift for my 5 year old grandson

Very pleased with mountain bike helmet It’s adjustable study and safe He loved the bright green/Florescent flash on one side

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Safety Helmet

Really good - good fit, comfortable ;-)

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Thank you for taking the time to leave your review, Angela.

We really appreciate you doing this.

We hope you have a great day!


Sports Advisor (Customer Service)

Decathlon Wednesbury

Decathlon UK Limited. Company number: 03140144. VAT number: GB679262296.

Registered office: 9 Maritime Street, London, SE16 7FU.

Bike helmet

Great helmet

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Boys hat

Been struggling to get a helmet to fit my 13 year old son this hat fit really snug

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Fits my small head!

MEDIUM in the adult helmets was too large for my petite head but it’s clear that the ‘kids’ helmets are the exact same as the adults just with fewer colour options (sadly). This SMALL helmet fits me great and is ponytail compatible.

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We are very glad to hear your satisfaction with our product and look forward to seeing you again very soon!!

Kids Helmet

Great product and price

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DO NOT BUY - you cannot adjust strap angles!

Straight to the point - do not buy this - you cannot adjust the angle of the straps, unlike almost all other helmet brands! As a result, you end up either with the strap so lose that the helmet can slip right back off your forehead, or if you try to prevent this, it has to be ridiculously tight against your adams apple! If you're going to bother wearing a cycle helmet, you need it to be fitted correctly otherwise it won't protect you. And if there's one area where Decathlon / BTwin should not be trying to save money, it is in ensuring that the straps can be adjusted so that they fit correctly. We bought this as Decathlon/BTwin can normally be relied upon for good design and great value, but I'd say this design is flawed - potentially fatally!

Great cycling staple

Brilliant helmet for children at a very reasonable price

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Great helmet at a great price

Bought this helmet for my son and he loves it.Great product at a great price.Quick delivery couldn't ask for anymore.

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Very good

Helmet looks very nice and fits perfectly!

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Additional Product informations



  • 100% EPS - Expanded Polystyrene


  • 100% Polycarbonate

Size - head size conversion

S: 51 -56 cm


Polycarbonate In-Mold Microshell

En 1078 standard

Complies with standard EN 1078 for cycling, skating and skateboarding helmets. EN1078 is a European standard regarding testing methods and requirements for "cycling, skateboarding, and skating" helmets.This standard covers the following aspects: construction, including field of vision, shock absorption properties, retention system features including the chinstrap and tightening devices, and marking and information.

Returns conditions for personal protective equipment

A helmet is an item of PPE (Personal Protective Equipment).Ensure this product is suitable for you (model / size / colour) before purchase.If this is not the case, you may return it under the following conditions: with the instructions, labels, and if applicable, original packaging. It can then be reused. Together we can care for our planet.

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