Smith Mainline Mips Full Face MTB Helmet - Matte Archive Flamingo - Medium - 55cm - 59cm

Built for going big and pushing limits, the Smith Mainline is a downhill-certified full-face helme...

Best current price£199.95from Merlin Cycles

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5 offers from £199.95 - £285.00

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Merlin CyclesSmith Matte Archive Flamingo Mainline Mips Full Face Mtb Helmet - / Medium / 55Cm / 59Cm
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£199.95
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TredzSmith Optics Matte Archive Flamingo Mainline Mips Full Face Mtb Cycling Helmet
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£285.00
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Tweeks CyclesSmith Mainline MIPS Helmet - Matte Archive Flamingo, L (59-62cm)
Free delivery in 1–3 days
£285.00
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Product Information

Full details

The Smith Mainline Mips Full Face MTB Helmet is designed for aggressive enduro riders and downhill enthusiasts who prioritize safety without sacrificing breathability. It provides elite protection through integrated Mips technology and full-coverage KOROYD impact absorption, making it an ideal choice for technical terrain. Riders should note that while it offers exceptional airflow, the D-ring strap system requires a bit more time to secure compared to traditional buckle designs.

All features

Age Groupadult
GenderUnisex
Model Part NumberE007423T95559
BrandSmith Optics

Extended Product Information

FAQs

Is this helmet suitable for downhill racing?

Yes, the Smith Mainline is certified to ASTM F1952 downhill standards, making it appropriate for competitive enduro and downhill riding.

How do I determine my size?

The medium size fits head circumferences between 55cm and 59cm. Always measure your head at the widest point above your eyebrows.

Are the pads washable?

Yes, the cheek pads, crown liners, and neck rolls are removable and washable to keep your helmet fresh.

Can I use any goggles with this helmet?

While it is optimized for Smith goggles, the large eye port accommodates most standard mountain bike goggle brands.

What is the purpose of the KOROYD material?

KOROYD is a crumple-zone material that absorbs more energy upon impact compared to standard foam, while also allowing for better airflow.

Troubleshooting

Goggles fogging up while riding

Ensure the goggle strap is positioned correctly and that the top edge of the goggle is aligned with the AirEvac channel to allow proper airflow.

Helmet feels loose or unstable

Swap the existing cheek pads or crown liner for a thicker set from the included fit kit to ensure a snug, secure contact with your head.

Chin strap feels uncomfortable

Re-thread the D-ring strap to ensure it lies flat against your skin and verify that the chin pad is properly positioned.

Pros and Cons

Pros

  • Certified for downhill use (ASTM F1952)
  • Lightweight construction reduces fatigue on long rides
  • Excellent goggle integration
  • High-level impact protection with KOROYD and Mips
  • Fully adjustable visor

Cons

  • D-ring chin strap takes longer to adjust than buckle types
  • Fixed vents mean no on-the-fly closure during cold days
  • Requires proper pad swapping to achieve the perfect fit

Setup, Compatibility & Care

To set up your helmet, begin by testing the included pad kits to find the best configuration for your head shape. The cheek pads, crown liners, and neck rolls are interchangeable to customize the fit. Always ensure the D-ring chin strap is threaded correctly and snug against the jaw before riding. To care for the helmet, remove the washable liner components regularly and clean them with mild soap and water. Clean the outer shell with a damp, soft cloth; avoid harsh solvents that could damage the helmet's structural integrity. Inspect the KOROYD material after any significant impact.

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