Designed for committed riders, the Smith Mainline helmet is a full-face model for enduro and downhill. It combines maximum protection with a lightweight and ventilated construction, ideal for technical trails and high speeds. Its advanced design allows for a precise fit and perfect compatibility with goggles for clear, fog-free vision.
Key Features
-
Full Koroyd® protection for energy absorption and ventilation
-
Mips® system reduces rotational forces during impacts
-
Downhill certification (ASTM F1952) and NTA8776 e-bike standards
-
21 fixed vents for efficient airflow
-
AirEvac system to prevent fogging with goggles
-
Customizable fit with multiple foams (cheeks, head, neck)
-
D-ring buckle closure for a secure hold
-
Adjustable visor for added protection
Materials
-
Structure: lightweight and durable full-face shell
-
Protection: Koroyd® + Mips®
-
Lining: X-STATIC® / Ionic+® antibacterial textile
-
Straps: robust system with D-ring closure
Highlights
✔️ Maximum protection for downhill and enduro
✔️ Efficient ventilation despite full-face design
✔️ Customized fit for optimal comfort
✔️ Perfect compatibility with riding goggles
Mainline Mips Bike Helmet - Unisex
The measurements presented are for guidance only. Actual fit may vary depending on the product's cut. For optimal choice, trying on the item remains the best option.
How to measure
Head circumference: Wrap a tape measure around your head, about 1 cm above your eyebrows and ears, at the widest point.
If you are between two sizes, choose the larger one and adjust with the fit system. Round Contour / Asian Fit versions run slightly larger at each size.
Helmets - Adults
| Size | Head Circumference (cm) |
|---|---|
| S | 51 – 55 |
| M | 55 – 59 |
| L | 59 – 63 |
| XL | 63 – 67 |
Helmets - Junior
| Size | Head Circumference (cm) |
|---|---|
| Youth S | 48 – 53 |
| Youth S/M | 48 – 56 |
| Youth M | 53 – 58 |
Why this price?
- Samples and overstock from major brands
- New products
- Limited quantities – no restock
Designed for committed riders, the Smith Mainline helmet is a full-face model for enduro and downhill. It combines maximum protection with a lightweight and ventilated construction, ideal for technical trails and high speeds. Its advanced design allows for a precise fit and perfect compatibility with goggles for clear, fog-free vision.
Key Features
-
Full Koroyd® protection for energy absorption and ventilation
-
Mips® system reduces rotational forces during impacts
-
Downhill certification (ASTM F1952) and NTA8776 e-bike standards
-
21 fixed vents for efficient airflow
-
AirEvac system to prevent fogging with goggles
-
Customizable fit with multiple foams (cheeks, head, neck)
-
D-ring buckle closure for a secure hold
-
Adjustable visor for added protection
Materials
-
Structure: lightweight and durable full-face shell
-
Protection: Koroyd® + Mips®
-
Lining: X-STATIC® / Ionic+® antibacterial textile
-
Straps: robust system with D-ring closure
Highlights
✔️ Maximum protection for downhill and enduro
✔️ Efficient ventilation despite full-face design
✔️ Customized fit for optimal comfort
✔️ Perfect compatibility with riding goggles
