DECATHLON BTWIN Adult Mountain Bike Helmet

Made for protecting a child's head from 3- to 10-years-old, while riding a bike.

Made for protecting a child's head from 3- to 10-years-old, while riding a bike.

SizesM: 54-48L: 58-62

SafetyBSI Certified: AS/NZS 2063:2008

How do you choose your helmet size?To work out your helmet size, simply measure the circumference of your head (at the forehead).

When should I replace my helmet?We recommend replacing your helmet in 2 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 is why we recommend replacing it if you have the slightest doubt. 2/ After 5 years of use The 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.

21 openings provide excellent ventilation. The 3D dial adjustment provides great comfort and a secure snug fit.

Ventilation 21 ventilation holes.

Lightweight 290 g in size M.

Ease of use 3D dial-fit adjustment for height and circumference.

Made for protecting a child's head from 3- to 10-years-old while riding a bike.

Ventilation
21 ventilation holes.

Lightweight
290 g in size M.

Ease of use
3D dial-fit adjustment for height and circumference.