BELL Lithium vs AGV K3 SV vs HJC C10 vs SCORPION EXO 491

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Impact resistance map (legacy four zones)

No verified 6 / 7.5 / 8.5 m/s point data for these records. Legacy four zones are not placed into the three-speed map without a verified speed.

Front
BELL Lithium Front
Lithium
AGV K3 SV Front
K3 SV
HJC C10 Front
C10
SCORPION EXO 491 Front
491
Right side
BELL Lithium Right side
Lithium
AGV K3 SV Right side
K3 SV
HJC C10 Right side
C10
SCORPION EXO 491 Right side
491
Rear
BELL Lithium Rear
Lithium
AGV K3 SV Rear
K3 SV
HJC C10 Rear
C10
SCORPION EXO 491 Rear
491
Left side
BELL Lithium Left side
Lithium
AGV K3 SV Left side
K3 SV
HJC C10 Left side
C10
SCORPION EXO 491 Left side
491

Technical specifications

Feature Lithium K3 SV C10 491
Brand BELL AGV HJC SCORPION EXO
Model Lithium K3 SV C10 491
Product / model code — — — —
Safety summary SHARP: 4.0 stars SHARP: 4.0 stars SHARP: 4.0 stars SHARP: 3.0 stars
Helmet type Full face Full face Full face Full face
Durability
Weight 1.6 kg 1.5 kg 1.5 kg 1.6 kg
Size XS S M L XL XS S M L XL XXL XXS XS S M L XL XXL XS S M L XL XXL
Listed price (reference) $199 $150 $89 $149
Material Thermoplastic Thermoplastic Polycarbonate Polycarbonate
Retention system Quick release Micrometric + quick release Quick release Quick release
Certification UN ECE REG 22.06 UN ECE REG 22.05 UN ECE REG 22.06 UN ECE REG 22.06
Shell sizes Single size Multi size Multi size Multi size
Pinlock ready Yes Yes Yes Yes
Scratch-resistant visor Yes Yes Yes Yes
Quick-release visor No Yes No No
Removable cheek pads Yes Yes No Yes
Intercom ready No Yes No No
Ventilation channels Yes Yes Yes Yes
Internal sun visor Yes Yes No Yes
Removable liner Yes Yes Yes Yes

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Helmet comparison FAQ

What are the main differences between these helmets?

Looking at the selected models side by side: Safety certifications differ — Lithium: UN ECE REG 22.06; K3 SV: UN ECE REG 22.05; C10: UN ECE REG 22.06; 491: UN ECE REG 22.06. K3 SV is the lightest listed at 1.5 kg; the heaviest is Lithium at 1.6 kg (about 0.10 kg apart; weight can vary by size). An internal sun visor is listed for Lithium, K3 SV and 491. These points summarise measurable catalogue fields; fit and real-world comfort still depend on trying the correct size.

Do these helmets have the same safety certification?

Lithium is listed with UN ECE REG 22.06. K3 SV is listed with UN ECE REG 22.05. C10 is listed with UN ECE REG 22.06. 491 is listed with UN ECE REG 22.06. So the certification entries are not identical across every model. ECE 22.05, ECE 22.06 and DOT are legal approval standards; a SHARP star rating (when present) is a separate independent lab assessment and must not be read as the same kind of result. We do not infer SHARP stars from an ECE mark alone. Verified SHARP ratings on this page: Lithium: 4.0 stars; K3 SV: 4.0 stars; C10: 4.0 stars; 491: 3.0 stars.

What do the colours on the impact zone map mean?

Our map stores regional codes on a 1–6 scale (greener ≈ stronger on this page; brown ≈ weaker). When verified multi-speed SHARP point data is present, you can switch 6 / 7.5 / 8.5 m/s and see front-top, front-lower, rear, left and right separately — missing speeds or points show “no data” and are never filled from another speed. Older records may only have the legacy four zones (front/rear/sides) without a verified speed label; those are not placed into the three-speed map. Zone colours are not the same thing as a SHARP star rating. For the models on this page where the safety source is marked SHARP, zone codes are treated as SHARP-linked map data.

How do these helmets compare in front, rear and side impact tests?

Comparing the stored legacy zone codes: at the right side, K3 SV maps mid while 491 maps weaker; at the left side, K3 SV maps mid while Lithium maps weaker. These comparisons use the legacy four-zone fields only; impact speed was not verified for the three-speed map.

Which helmet is lighter, and by how much?

Listed weights: Lithium: 1.6 kg; K3 SV: 1.5 kg; C10: 1.5 kg; 491: 1.6 kg. K3 SV is the lightest in this set, about 0.10 kg below the heaviest. Treat this as catalogue data for a typical size — exact mass can change with size and lining.

Which helmets support Pinlock or have an internal sun visor?

Pinlock-ready anti-fog visor support is marked for Lithium, K3 SV, C10 and 491 (ready/compatible in our catalogue — not “insert included in the box” unless the retailer says so); an internal sun visor is marked for Lithium, K3 SV and 491; no internal sun visor flag for C10.