Leatt · MTB 4.0 V21
莱特 MTB 4.0 V21 碳纤维
Quick Facts at a Glance
Verified Safety Snapshot
How this helmet’s verified certifications map to recognized safety homologations and crash testing.
Safety standards compliance is based on official manufacturer documentation and public safety laboratory test results. Always verify regional compliance labels on the physical helmet prior to use.
Verified Fit & Sizing Guide
Head shape profile matching and interactive size calculator based on verified manufacturer dimensions.
How to measure
Wrap a cloth measuring tape around your head just above your eyebrows and ears. Pull the tape comfortably snug, read the length, and repeat for consistency.
Design Concept & Background
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莱特 MTB 4.0 V21 碳纤维 is a high-performance motorcycle helmet engineered by Leatt to meet high standards of safety and comfort. Inspect its detailed design background and specifications below.
Rider Profile & Intended Use
Where to buy
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Amazon (US)
USD 349.95 View Deal →
📍 Tillamook, OR and online
Price History & Trends
ℹ️ Helmetsan is an independent motorcycle safety & decision engine. When you check prices or purchase via retailer links, Helmetsan may earn an affiliate commission at no additional cost to you.
Product Concept & Specifications
Leatt (New Zealand)Engineering & Technical Analysis
李特 MTB 4.0 V21 碳纤维头盔通过集成的 360° 涡轮科技，在碰撞中显著降低旋转加速度和脑震荡风险，优先保障骑行者安全。轻质碳纤维外壳与速干透气内衬相结合，确保贴合稳定且舒适。通过 13 个战略性分布的通风口和宽大气流通道，优化通风效果，即使在高强度越野骑行中也能保持持续降温。
Fit & Shell Structure
Intermediate Oval Shape
Balanced oval fit: standard ergonomic curvature fitting 80%+ of riders.
Safety & Certifications
Acoustics & Aerodynamics
Technology & Convenience
Interactive Size & Fit Finder
How to measure
Wrap a cloth measuring tape around your head just above your eyebrows and ears. Pull the tape comfortably snug, read the length, and repeat for consistency.
Compare & buy
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User Reviews
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Data Confidence & Verification Provenance
Helmetsan enforces field-level verification and multi-source cross-referencing. Unverified values are explicitly flagged rather than estimated.