LS2 FF351 vs LS2 FF352

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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
LS2 FF351 Front
FF351
LS2 FF352 Front
FF352
Right side
LS2 FF351 Right side
FF351
LS2 FF352 Right side
FF352
Rear
LS2 FF351 Rear
FF351
LS2 FF352 Rear
FF352
Left side
LS2 FF351 Left side
FF351
LS2 FF352 Left side
FF352

Technical specifications

Feature FF351 FF352
Brand LS2 LS2
Model FF351 FF352
Product / model code — —
Safety summary SHARP: 1.0 stars SHARP: 4.0 stars
Helmet type Full face Full face
Durability
Weight 1.3 kg 1.3 kg
Size XS S M L XL XXL XXS XS S M L XL XXL
Listed price (reference) $40 $50
Material Polycarbonate Polycarbonate
Retention system Micrometric Micrometric
Certification UN ECE REG 22.05 UN ECE REG 22.05
Shell sizes Single size Single size
Pinlock ready Yes No
Scratch-resistant visor Yes Yes
Quick-release visor Yes Yes
Removable cheek pads Yes Yes
Intercom ready No No
Ventilation channels Yes Yes
Internal sun visor No No
Removable liner Yes Yes

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Helmet comparison FAQ

LS2 FF351 vs LS2 FF352: what are the main differences?

Looking at the selected models side by side: All listed helmets share the same certification entry: UN ECE REG 22.05. Pinlock-ready anti-fog visor support is listed for FF351 (not all models). Verified SHARP star ratings in our data: FF351: 1.0 SHARP stars; FF352: 4.0 SHARP stars. SHARP is an independent assessment, not a legal certification. 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?

FF351 is listed with UN ECE REG 22.05. FF352 is listed with UN ECE REG 22.05. On paper they share the same certification entry. 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: FF351: 1.0 stars; FF352: 4.0 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, FF352 maps mid while FF351 maps weaker; at the left side, FF352 maps mid while FF351 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: FF351: 1.3 kg; FF352: 1.3 kg. They are within about 50 g of each other in our data, so none is meaningfully lighter. Manufacturer weight often varies by shell size.

Which helmets support Pinlock or have an internal sun visor?

Pinlock-ready anti-fog visor support is marked for FF351 (ready/compatible in our catalogue — not “insert included in the box” unless the retailer says so); not marked for FF352.