








Gmax - AT-21Y Adventure Helmet (Youth)
GMAX - AT-21Y Adventure Helmet (Youth)
GMAX’s AT‑21Y Adventure Helmet is built for young riders who want real dual‑sport versatility without the bulk. It feels light, fits secure, and keeps them focused on the trail—not fighting their gear.
The AT‑21Y uses a lightweight polycarbonate shell with ECE/DOT safety, a drop‑down sun shield for bright days, and a SpaSoft® interior that wicks sweat and stays fresh. Recessed speaker pockets make it easy to add a comm system, and the quick‑release buckle makes gearing up simple in the pits or at the trailhead.
Why We Like It — It’s the rare youth ADV lid that actually rides cool and quiet. The sun shield saves eyes on dusty fire roads, the liner dries fast, and the whole helmet feels balanced so kids aren’t fighting neck fatigue.
Why It’ll Work for You — If you want straightforward protection and comfort for a younger rider, this checks every box: certified safety, easy on/off buckle, built‑in sun shield, and a liner that’s easy to clean.
Variants / Options — Colors: Black, Matte Black. Sizes: YL, YM, YS.
- ECE / DOT approved
- Quick‑release buckle system
- Lightweight polycarbonate shell
- Removable, adjustable, and washable SpaSoft® interior
- Antimicrobial liner with COOLMAX® CORE moisture management
- Built‑in speaker pockets for comm systems
- Internal drop‑down sun shield
Original: $134.96
-70%$134.96
$40.49Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
GMAX - AT-21Y Adventure Helmet (Youth)
GMAX’s AT‑21Y Adventure Helmet is built for young riders who want real dual‑sport versatility without the bulk. It feels light, fits secure, and keeps them focused on the trail—not fighting their gear.
The AT‑21Y uses a lightweight polycarbonate shell with ECE/DOT safety, a drop‑down sun shield for bright days, and a SpaSoft® interior that wicks sweat and stays fresh. Recessed speaker pockets make it easy to add a comm system, and the quick‑release buckle makes gearing up simple in the pits or at the trailhead.
Why We Like It — It’s the rare youth ADV lid that actually rides cool and quiet. The sun shield saves eyes on dusty fire roads, the liner dries fast, and the whole helmet feels balanced so kids aren’t fighting neck fatigue.
Why It’ll Work for You — If you want straightforward protection and comfort for a younger rider, this checks every box: certified safety, easy on/off buckle, built‑in sun shield, and a liner that’s easy to clean.
Variants / Options — Colors: Black, Matte Black. Sizes: YL, YM, YS.
- ECE / DOT approved
- Quick‑release buckle system
- Lightweight polycarbonate shell
- Removable, adjustable, and washable SpaSoft® interior
- Antimicrobial liner with COOLMAX® CORE moisture management
- Built‑in speaker pockets for comm systems
- Internal drop‑down sun shield























