Mountain Bike Helmet EXPL 100 - Blue

9 vents.Chinstrap fastening: clipOccipital adjustment: dial.Comfort foam: detachable and washable (available from after-sales)Visor: fixedOuter shell: ABSDimensions in size M: Length: 30 cm, Width: 21 cm, Height: 20 cm

To find your helmet size, simply measure your head circumference (around the forehead).This mountain bike helmet is available in two sizes:M: 55 - 59 cmL: 59 - 62 cm

European standard setting out the requirements and test methods for helmets to be worn by users of rollerblades, skateboards, scooters and bicycles. The corresponding requirements and test methods cover the following aspects: construction, including field of vision; shock absorption properties, characteristics of the retention system, including the chinstrap and tightening devices; marking and information.

We recommend replacing your helmet in 2 cases:1/ After a fall:In the event of a fall, your helmet's material 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 use:The foam deteriorates. It can deteriorate due to impact, where it is stored and its use. We therefore recommend replacing your helmet at least every 5 years.

3 quick steps for adjusting your helmet in 2 minutes:1/ If needed, pull your ponytail through the back of the helmet (lower the dial's rim).2/ Adjust and clip the buckles on the 2 straps: check that you can still slide 2 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.

Our team of product designers based at the B'Twin Village in Lille is continuously working to make cycling more comfortable for our users.Our obsession is to create products that meet the specific cycling needs of our users and eliminate hindrances to a good cycling experience.