🛡️ Alpinestars SM3 Radium Helmet – Gloss Black/White/Gray (S–2XL)

🛠️ The new Alpinestars SM3 Radium helmet delivers performance, comfort, and protection in a lightweight, value-packed package. Built for MX, enduro, and off-road riders, this helmet is ECE 22.06 and DOT certified and features advanced rotational impact management and ventilation in a sleek gloss black/white/gray finish.

✅ What’s Included

1x Alpinestars SM3 Helmet (Radium graphic)
Removable crown and cheek pads
Adjustable breakaway visor
Hydration channel-ready cheek pads
Helmet bag
Sizes: S, M, L, XL, 2XL

📦 Fitment

Riding style: MX, Enduro, Off-Road, UTV, ATV
Gender: Unisex
Size group: Adult
Available sizes: Small through 2XL
Model: SM3 Radium

🛡️ Warranty Info

Covered under Alpinestars' limited manufacturer warranty. Visit Alpinestars.com for coverage details.

🔑 Key Features

DOT & ECE 22.06 certified for safety compliance
Thermoplastic shell with varied thickness for optimized weight and protection
Composite fiber-reinforced inner shell for enhanced impact resistance
6-piece EPS liner with 3 densities for targeted impact absorption
Maximized airflow: 10 intake and 7 exhaust ports
Breakaway visor system reduces neck strain during crashes
Low-friction EPS liner for improved rotational impact protection
Emergency Release System (ERS) and 3D cheek pads for safer removal
Chin strap: 25mm soft textile with stainless steel D-rings

📦 Shipping Information

In-Stock Items:
- Most parts ship next business day
- Modquad parts: Monday–Thursday dispatch

Made-to-Order Items:
- Custom swingarms & A-arms: 2–4 weeks
- EVP exhaust systems: 2–4 weeks
- Sneakers: 1–2 weeks

Stock Guarantee: Items marked "In Stock" ship immediately. Made-to-order items are built fresh for you.

Questions? Contact us—we respond within 24 hours.

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