7 iDP Project 21 MTB Helmet
Best premium protection for dedicated trail riders seeking all day comfort.
A high-airflow trail helmet that prioritizes safety through a proprietary polymer impact layer rather than traditional systems. It balances technical coverage with a user-friendly, adjustable fit, making it a reliable choice for aggressive trail and enduro riding.
$119.99
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Who it's for
- Safety-conscious riders seeking maximum protection during technical trail descents
- Endurance-focused mountain bikers riding in hot or humid climates
- Versatile trail riders who frequently switch between sunglasses and goggles
Who should skip it
- Budget-oriented cyclists looking for a basic, affordable head protection option
- Minimalist riders who prioritize subtle designs over bold, technical styling
- Riders with rounder head shapes requiring a more universal fit
Performance breakdown
Impact Protection
ERT technology effectively manages both linear and rotational forces during crashes.
Ventilation Efficiency
Twenty-one vents keep air moving freely during high-intensity trail efforts.
Fit Customization
Rear dial adjuster and included padding allow for a precise, secure fit.
Safety Features
Breakaway visor design adds a crucial layer of rotational force reduction.
Goggle Integration
Through-flow channels accommodate goggles without obstructing airflow or comfort.
Build Quality
Robust construction offers reliable durability without the premium racing price tag.
Key Specs
Intended Use
Trail, Bike Park, All-Mountain, Enduro
Helmet Type
Trail MTB
Safety Technology
ERT (Energy Reduction Technology)
Safety Certification
CE, CPSC, AS
Number of Vents
21
Visor Type
Crash Release Visor
Fit System
7iDP Rear Dial Adjuster
Closure Type
Clip
Integrated Lighting
No
Removable Padding
Yes
Know before you buy
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Ask Metto anything about the 7 iDP Project 21 MTB Helmet before you decide.