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ST 500 Adjustable Mountain Bike Helmet - Adults
  • ST 500 Adjustable Mountain Bike Helmet - Adults
  • ST 500 Adjustable Mountain Bike Helmet - Adults
  • ST 500 Adjustable Mountain Bike Helmet - Adults
  • ST 500 Adjustable Mountain Bike Helmet - Adults
  • ST 500 Adjustable Mountain Bike Helmet - Adults
  • ST 500 Adjustable Mountain Bike Helmet - Adults
  • ST 500 Adjustable Mountain Bike Helmet - Adults
  • ST 500 Adjustable Mountain Bike Helmet - Adults
  • ST 500 Adjustable Mountain Bike Helmet - Adults
  • ST 500 Adjustable Mountain Bike Helmet - Adults
  • ST 500 Adjustable Mountain Bike Helmet - Adults
  • ST 500 Adjustable Mountain Bike Helmet - Adults
  • ST 500 Adjustable Mountain Bike Helmet - Adults
ST 500 Adjustable Mountain Bike Helmet - Adults

ROCKRIDER

8555833

ST 500 Adjustable Mountain Bike Helmet - Adults

$45.00
183 reviews
178 of 183 people recommends this product
  • ST 500 Adjustable Mountain Bike Helmet - Adults
  • ST 500 Adjustable Mountain Bike Helmet - Adults
  • ST 500 Adjustable Mountain Bike Helmet - Adults
  • ST 500 Adjustable Mountain Bike Helmet - Adults
  • ST 500 Adjustable Mountain Bike Helmet - Adults
  • ST 500 Adjustable Mountain Bike Helmet - Adults
  • ST 500 Adjustable Mountain Bike Helmet - Adults
  • ST 500 Adjustable Mountain Bike Helmet - Adults
  • ST 500 Adjustable Mountain Bike Helmet - Adults
  • ST 500 Adjustable Mountain Bike Helmet - Adults
  • ST 500 Adjustable Mountain Bike Helmet - Adults
  • ST 500 Adjustable Mountain Bike Helmet - Adults
  • ST 500 Adjustable Mountain Bike Helmet - Adults
ST 500 Adjustable Mountain Bike Helmet - Adults
Colour :
Size :
Size guide
Not available online

Store Availability

Store Availability

This well-ventilated, adjustable mountain biking helmet is designed for rides lasting up to 4 hours.

BENEFITS

User comfort

Forget it’s there: its comfortable removable foam pads prevent pressure points.

Stability

The 3D tightening system locks the helmet in place during your rides.

Easy to use

No need to adjust the straps. Quick and easy to pull your ponytail through.

Ventilation

Stay cool: air circulates through 17 vents.

Compatibility

Compatible with ponytails and has a Vioo Clip light at the back.

TECHNICAL INFORMATIONS

How to choose your helmet size

To find your helmet size, simply measure the circumference of your head (around the forehead). The ST 500 helmet comes in two sizes:
M: 55–59 cm
L: 59–62 cm

Weight and dimensions

Size M weight: 325 g
Size L: 380 g

Dimensions
Length: 30 cm
Width: 21 cm
Height: 15.5 cm

Cushioning foam

A cushioning foam replacement kit is available for this helmet on our website.

Please note that on some helmets, the colour of the EVA cushioning foam (in contact with the top of the head) may vary.

When should I replace my helmet?

We recommend replacing your helmet in these two situations:

1. After a fall:
In the event of a fall, the material of your helmet can deteriorate or even break. Sometimes the damage isn’t visible. That’s why it should be replaced after a fall.

2. After five years of use:
The foam deteriorates. It can deteriorate because of an impact, where it’s stored, the climate, and use. We therefore recommend replacing your helmet at least every five years.

How do you adjust the helmet?

Three easy steps for adjusting your helmet in two minutes:
1. If necessary, pull your ponytail through the back of the helmet (lower the dial’s rim).

2. Clip the straps together with the buckle and adjust: make sure you can slide two fingers between the strap and your chin.

3. Adjust the tightness around your head using the rear dial.

The helmet should be in contact with your head without tipping forward, backward, or sideways, even when you’re moving.

How to attach and remove the visor

The ST 500 mountain biking helmet has a detachable visor.

Unclip and reclip it whenever you want, using the connectors on each side.
However, we recommend keeping it on your helmet during your mountain bike rides. It protects you from branches, sun, and splashes.

Remember to wear glasses for additional eye protection from vegetation and any dust you kick up when tearing down singletracks.

Combining sports and safety

Helmets may seem restrictive at first. The Rockrider team is unanimous: helmets have an important role to play in mountain biking.
We all wear helmets. For us, helmets are essential. Don’t forget to wear one!

A helmet for long hair

We designed this helmet for long hair.
Fitting your helmet over your ponytail is never easy when getting ready for a mountain bike ride.

Gone are the days of stuffing your hair inside your helmet. Just pull down the tongue: it’s quick and easy. You can then use the dial to adjust the helmet!

Product tests

Based at the Btwin Village in Lille, our product design team constantly works to make cycling more comfortable for our users.
We strive to create products that meet our users’ specific cycling needs, eliminating unnecessary features.

Our products’ environmental impact

A product’s environmental impact is calculated based on its entire life cycle using various indicators.
An ABCDE rating shows the environmental impact of a product. Put forward by ADEME, it takes into account production, transportation, usage, and waste generated at the end of a product’s life.
Decathlon displays this information voluntarily to help you identify products with lower environmental impact.Learn more at: http://sustainability.decathlon.com/

Make sure that this helmet fits you properly.

If you want to return it, make sure it still has the instructions, labels, and original packaging (if applicable), so that it can be reconditioned. Let’s take care of our planet, together.

Reviews

4.7/5 183 reviews
178 of 183 people recommends this product
protective but fit isn’t super comfortable
CJ (Canada) Used for 4 to 6 months
Built to a price-point, this resembles all the generic helmets you find online from bit ecomm sites. It’s protective but the ratcheting mechanism used to tighten the suspension system tends to be very uncomfortable with some hot-spots at the rear, and the pawls inside the knob itself tends to wear out. Eventually, you won’t be able to tighten it as much as needed.
Real MTB Helmet
sk (India) Used for 3 to 8 weeks ✓ Verified purchase What is a "Verified purchase"?

Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

If a review is not marked as "Verified purchase," this does not mean that the author's review has no experience with the product. They may have given their review directly on the site without unique identification, or the product has been offered or paid by someone else.

The label "Verified purchase" let's help you judge the reliability of a review.
Love this.
helmet thats best in its
Lim (Singapore) Used for 3 to 8 weeks ✓ Verified purchase What is a "Verified purchase"?

Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

If a review is not marked as "Verified purchase," this does not mean that the author's review has no experience with the product. They may have given their review directly on the site without unique identification, or the product has been offered or paid by someone else.

The label "Verified purchase" let's help you judge the reliability of a review.
Ive bought more costly ones, but this is similar and great value for money!
Helmet
Aaron (Singapore) Used for 3 to 8 weeks ✓ Verified purchase What is a "Verified purchase"?

Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

If a review is not marked as "Verified purchase," this does not mean that the author's review has no experience with the product. They may have given their review directly on the site without unique identification, or the product has been offered or paid by someone else.

The label "Verified purchase" let's help you judge the reliability of a review.
The helmet has a good and sturdy structure. Very fitting and offers great protection.
Good sports brand
Shivarjun (India) Used for 3 to 8 weeks ✓ Verified purchase What is a "Verified purchase"?

Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

If a review is not marked as "Verified purchase," this does not mean that the author's review has no experience with the product. They may have given their review directly on the site without unique identification, or the product has been offered or paid by someone else.

The label "Verified purchase" let's help you judge the reliability of a review.
Good
GEOK (Singapore)
Fits comfortably. Nice color too.
Good for price
Andy (United Kingdom) Used for 3 to 8 weeks ✓ Verified purchase What is a "Verified purchase"?

Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

If a review is not marked as "Verified purchase," this does not mean that the author's review has no experience with the product. They may have given their review directly on the site without unique identification, or the product has been offered or paid by someone else.

The label "Verified purchase" let's help you judge the reliability of a review.
Seems comfy and lightweight. Looks good for a helmet too. I’m a little concerned the mechanism and plastic straps inside look a little weak. Hopefully I’m wrong and will only find out in due course how they last. In hindsight do wish I’d got a yellow one so can be seen better, but may get a second if ride more on roads or add some stickers too it.
Great grip
Dr. Robin (India) Used for 3 to 8 weeks ✓ Verified purchase What is a "Verified purchase"?

Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

If a review is not marked as "Verified purchase," this does not mean that the author's review has no experience with the product. They may have given their review directly on the site without unique identification, or the product has been offered or paid by someone else.

The label "Verified purchase" let's help you judge the reliability of a review.
Protective, good grip, safety
Cool airy protection
JONATHAN (Singapore) Used for 3 to 8 weeks ✓ Verified purchase What is a "Verified purchase"?

Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

If a review is not marked as "Verified purchase," this does not mean that the author's review has no experience with the product. They may have given their review directly on the site without unique identification, or the product has been offered or paid by someone else.

The label "Verified purchase" let's help you judge the reliability of a review.
Comfortable and cool
Perfect combination of style and durability
Chris (United Kingdom) Used for 2 week or less ✓ Verified purchase What is a "Verified purchase"?

Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

If a review is not marked as "Verified purchase," this does not mean that the author's review has no experience with the product. They may have given their review directly on the site without unique identification, or the product has been offered or paid by someone else.

The label "Verified purchase" let's help you judge the reliability of a review.
Well made product that puts a lot of other helmet manufacturers to shame.