Helmet black/orange H-Blocks This new generation frame features

This new generation frame features a bigger groove

or even the brand itself

Occasionally you will see a wrinkle along the inner race edge

then you can just messure the diameter/thickness of the axles

significantly reducing the stress on the UFS bolts

Helmet black/orange H-Blocks This new generation frame featuresAfter more than 10 years of ride accross the world , the Helmet ALK13 is certainly the lightest and most versatile of the market, is also very comfortable and proposes an original design and new colors every season. Attention, this helmet is not approved for the skateboard, the roller, the bike. It has Water Sport Approval : EN 1385 Characteristics: Nylon Belt ALK13. Stainless stamped rivets "13". Foam triple density: shockproof absorption foam