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ST 100 Mountain Bike Helmet
  • ST 100 Mountain Bike Helmet
  • ST 100 Mountain Bike Helmet
  • ST 100 Mountain Bike Helmet
  • ST 100 Mountain Bike Helmet
  • ST 100 Mountain Bike Helmet
  • ST 100 Mountain Bike Helmet
  • ST 100 Mountain Bike Helmet
  • ST 100 Mountain Bike Helmet
  • ST 100 Mountain Bike Helmet
  • ST 100 Mountain Bike Helmet
  • ST 100 Mountain Bike Helmet
  • ST 100 Mountain Bike Helmet
ST 100 Mountain Bike Helmet

ROCKRIDER

8578466

ST 100 Mountain Bike Helmet

$30.00
114 reviews
103 of 114 people recommends this product
  • ST 100 Mountain Bike Helmet
  • ST 100 Mountain Bike Helmet
  • ST 100 Mountain Bike Helmet
  • ST 100 Mountain Bike Helmet
  • ST 100 Mountain Bike Helmet
  • ST 100 Mountain Bike Helmet
  • ST 100 Mountain Bike Helmet
  • ST 100 Mountain Bike Helmet
  • ST 100 Mountain Bike Helmet
  • ST 100 Mountain Bike Helmet
  • ST 100 Mountain Bike Helmet
  • ST 100 Mountain Bike Helmet
ST 100 Mountain Bike Helmet
Size :
Not available online

Store Availability

This easy-to-use, adjustable mountain bike helmet is designed for your first mountain bike rides of up to 1½ hours.

BENEFITS

User comfort

Put on a well-fitting helmet with foam pads that you can forget you're wearing.

Stability

Adjust the helmet to your head using the adjustment dial.

Ventilation

Breathe: its 9 large ventilation holes let air move through it.

Easy to use

Enjoy: Y-shaped straps stitched under the ears for a snug fit.

TECHNICAL INFORMATIONS

How do you choose your mountain bike helmet size?

To find your helmet size, just measure your head's circumference.
1. Get a tape measure
2. Place it around your head, about 1 cm above your eyebrows and ears. Don't squeeze too tight. Or the helmet will be just as tight.
3. If the measurement falls between two sizes, opt for the larger size.

This mountain bike helmet is available in two sizes:
M: 53 - 57 cm
L: 57 - 62 cm
Please note: for safety reasons, helmets cannot be returned.

When should I replace my helmet?

We recommend replacing your helmet in these two cases:

1. After a fall
In the event of a fall, the material of your helmet can deteriorate or even break. Sometimes, you won't even notice. That’s why we recommend replacing it if you have the slightest doubt.

2. After five years of use
The foam of your helmet degrades over time. It can deteriorate due to impact, the place it’s stored, the climate, and its use. We recommend replacing your helmet at least every five years

How do I adjust my helmet?

Two easy steps to adjust your helmet in 5 minutes:

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

2. Finally, adjust the tightness around your head.

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

Compatible accessories

This helmet isn’t designed to be fitted with a headlamp or other light sources. Do you want to record your rides with a mounted camera? For your safety, we recommend attaching your sports camera directly on the handlebars or on your torso with a suitable harness.

Combining sports and safety

Helmets may seem restrictive at first. The Rockrider team is unanimous: helmets have an important role to play for mountain biking.
Moreover, we all wear a helmet. For us, helmets are essential. Don't forget to wear one! ;)

Reviews

4.5/5 114 reviews
103 of 114 people recommends this product
Does the job. Cheap but basic protection
John (Canada) Used for 8 to 12 months 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.

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The label "Verified purchase" let's help you judge the reliability of a review.
See title
not cool
Olaf (Canada) 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.
broken product even before purchase. we bought these bike helmets and within an hr the plastic was peeeling off the helmets. I went back and returned the helmet but could not find one that is not delaminating
Happy Happy Happy
Shafulnizam Bin (Malaysia) 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.
Mountain Bike Helmet ST 100 - Black ROCKRIDER
Happy happy happy
Response of the brand

Thank you so much for your review, Shafunizam! I am so glad to hear that love our Mountain Bike Helmet. We take pride in our customer service, if there’s anything else we can do, please let us know.


Nora

Perfect fit!
PARAG (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 and durable, quality at par
Material not good
Gokul (India) Used for 2 week or less
Material looks like foam
Mũ đạp xe đang mua đấy cả nhà
Hoang (Vietnam) 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.
Rất đẹp so với tầm giá
Cheap not sure about the durability.
Sze Gay (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.
not sure if this is durable but definitely a protective helmet.
Safe and sturdy helmet
Abhijit (Singapore) Used for 4 to 6 months 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.
Got this for my son. Fits well and looks very well made
Cycle helmet
Deepa (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.
Fairly ventilated and ergonomic
Helmet
Dayanethy (India) 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.
This product is excellent.I am very satisfied to buy this product.