Mountain Bike Helmet 500
Forget it's there: its comfortable removable foam pads prevent pressure points.
The 3D tightening system guarantees a good hold during your rides.
Don't get too hot: air circulates through the 21 vents.
Make your life easier: adjust the straps and the wheel to fit your head
Product Lifestyle Image gallery
Comfortable to wear and well adjustable
Good fit, light weight and head does not get too hot due to the ventilation holes.
Very good quality and colour I like it.
Sufficiently adjustable. All ok.
Just started out biking. Was shocked at how cheap and how good quality most of the products on offer at decathlon are. Would Highly recommend to any starting out
Just recently got back into cycling. Got this helmet, good price, comfortable and easy to adjust. What more do you need?
Good overall product comfortable and safe
Order this online. A great purchase!
Comfortable and great price
The helmet is very comfortable to wear and easy to adjust. Very good quality.
Light weight, beautiful, well manufactured, and a great piece in this price. Fit the head. Protects the head. Stylish. I got one and I am enjoying my rides. I would recommend it because it is a very good product and I would like to see riders enjoying their rides. Cheers.
Bought by my wife. They don't do a small size?
For this model of helmet only M and L sizes are available. We thank you for shopping with us and hope to see you soon again in our stores.
Have a nice evening and wish you to stay safe. Take care of you and your family.
Decathlon Milton Keynes
Great fit. Great price, and fits my lizard licks waterproof cover.
- 100% Expanded Polystyrene
- 100% Polycarbonate
- 100% Polyamide
- 100% Polypropylene
To work out your helmet size, simply measure the circumference of your head (at the forehead). The ST 500 MTB helmet is available in two sizes:M: 53 - 59cmL: 59 - 61cmPlease note: for safety reasons, helmets cannot be returned.
We recommend replacing your helmet in 2 cases:1/ After a fallIn the event of a fall, the material of your helmet can deteriorate or even break. Sometimes, you won't even notice. That is why we recommend replacing it if you have the slightest doubt.2/ After 5 years of useThe foam of your helmet degrades over time. It can deteriorate due to impact, where it is stored, the climate, and its use. We recommend replacing your helmet at least every 5 years
3 quick steps to follow to adjust your helmet in 5 minutes:1/ Clip the 2 straps with the buckle: check that you can still slide 2 fingers between the strap and your chin.2/ Adjust the straps so that they form a "Y" on each side of your ears. Just below the ear.3/ 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.
This Rockrider ST 500 mountain bike helmet has a detachable visor.Unclip and reclip it whenever you want using the connector on each side.However, we recommend keeping it on your helmet during your mountain bike rides. It protects you from branches, sun, and spray.
This helmet is not adapted to attach a headlamp or other lighting source. Do you want to film your rides with a mountable camera? For your safety, we recommend attaching your sport camera directly onto the handlebars or on your torso with a suitable harness.
The helmet can seem restrictive at first. The Rockrider team is unanimous: for mountain biking, helmets have an important role to play.Moreover, we all wear a helmet. For us, helmets are essential. Don't forget to wear one! ;)
Mountain Bike Helmet 500
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Heavy products return policy
If you return a product you will receive a refund for the purchase price plus any applicable sales taxes, less any non-refundable charges.
Decathlon will cover all shipping costs associated with your return except for items excluded from our return policy such as bikes, basketball hoops, snowboards, surfboards, tents, and other larger / heavier items.
Return costs for heavy products:
|Weight Thresholds||Shipping within California||Shipping outside of California|
|> 9 lbs||$20.00||$25.00|
|> 30 lbs||$50.00||$65.00|
|> 100 lbs||$100.00||$125.00|
|> 200 lbs||$200.00||$230.00|
If you return a product at any of our store locations, we will gladly help you find the best alternative product or refund you on the spot.