MET mountain bike helmets: Revo, Shelter, and Terrae
If you geek out on gear that actually moves the needle—not just on paper—MET’s Summer 2025 lineup is your kind of product. Three MTB lids, three distinct riders in mind, and a throughline of ventilation, coverage, and rotational impact management dialed in via real testing, not vibes. Here’s what matters and who each helmet is for. I’m wearing the Revo on the more technical MTB rides. It offers more coverage and more vents.
Quick take
- Revo ($239): Flagship trail/enduro/E-MTB with Mips AIR, extended coverage, and a measurable cooling bump over Roam. Virginia Tech 5-star and NTA 8776 certified.
- Shelter ($100): Lightweight, ventilated, everyday MTB value with Mips. Accessible price, clean visor integration.
- Terrae ($160): Mid-tier sweet spot with advanced ventilation, NTA certification, and Safe-T Heta retention.
What’s new and why it matters
- Ventilation that’s quantified: MET refined airflow in its in-house wind tunnel, “The Tube.” The Revo’s internal channels deliver a 23.5% cooling increase versus the Roam—real relief on long, technical days.
- Coverage where brains are vulnerable: Revo ups coverage at the back and temples, tested at 21% higher impact speed and able to dissipate up to 43% more impact energy, with 10% extra impact-tested coverage in those zones.
- Rotational impact management: Revo runs Mips AIR, the slim, lightweight variant designed to reduce rotational forces without choking ventilation. Shelter also includes Mips, while Terrae pairs NTA certification with MET’s stable Safe-T Heta fit system.
- E-speed ready (not just marketing): Revo and Terrae carry NTA 8776—built for speed e-bikes—signaling higher energy dissipation benchmarks than standard cycling certifications.
The helmets, at a glance
| Model | Use case | Safety | Venting | Fit + comfort | Weight | Price |
|---|---|---|---|---|---|---|
| Revo | Trail / Enduro / E-MTB | Mips AIR, NTA 8776, 5-star VT rating, extended back/temple coverage; CE/US/AS-NZ | 23 vents; engineered channels; 23.5% cooler vs Roam | Safe-T Heta with 360° belt; 3 vertical positions; Fidlock buckle; safety-release visor | 390 g (M) | $239 |
| Shelter | Everyday MTB value | Mips; integrated visor | Lightweight with internal air channels | Comfort-focused, versatile fit | — | $100 |
| Terrae | Performance/value bridge | NTA 8776; added back/temple protection | Advanced ventilation; lightweight | Safe-T Heta 360° retention for stability on rough terrain | — | $160 |
The Revo, unpacked
- Safety stack: Mips AIR; extended coverage at back/temples; tested at higher impact speeds and energy dissipation; 5-star Virginia Tech; NTA 8776, CE, US, AS-NZ certifications.
- Cooling you feel: 23 vents and internal channeling deliver a 23.5% cooling gain vs Roam. Expect less heat soak on slow climbs and tighter thermal recovery post-effort.
- On-head stability: Safe-T Heta system with a 360-degree belt prevents hot spots and micro-slips, plus three vertical adjustments. Fidlock buckle for glove-friendly on/off. Visor uses a safety-release to detach in crashes and won’t force the shell to rotate on impact.
- Build + sizing: In-mould polycarbonate shell with EPS; embedded strap anchors; 390 g (M). Sizes: S 52–56, M 56–58, L 58–61. Available now.
If you ride chunky Cascades singletrack, mix in shuttle days, or push an E-MTB pace, Revo’s coverage + NTA + airflow combo is a rare all-in-one that doesn’t feel overbuilt on the climbs.
Shelter and Terrae: where value meets intent
- Shelter ($100): Everyday MTB done right—Mips protection, light build, solid ventilation via internal channels, and a visor that blends cleanly into the shell. It’s the “buy it for you, recommend it to your buddy” helmet for riders building skills and mileage without compromising on safety fundamentals.
- Terrae ($160): The “ride hard, spend smart” option—NTA certification for higher energy impacts, back/temple protection, advanced venting, and the Safe-T Heta 360° fit for stability on rough terrain.
Both aim to democratize the performance that used to be locked behind flagship pricing, which is exactly what the category needs as trail speeds and heat both trend up.
Availability and where to see them
- Revo: At select North American retailers now; Shelter and Terrae rolled out later in the season.
- Brand + distribution: MET, founded in 1987 in Talamona, Italy, offers a full-range helmet lineup and partners with QBP for U.S. distribution to expand availability in shops and top online retailers.
Verdict
Revo is the standout for aggressive trail/enduro and e-assist riders who want measurable cooling and proven energy management without a DH penalty. Shelter nails the price-to-protection brief for newer riders or anyone who wants a no-fuss, well-ventilated daily. Terrae sits in the sweet spot for riders who want NTA-level protection and stable fit at a mid-tier price.
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