01
Track-day regulars
Who need genuine race homologation, aero stability at real speed, and ventilation that works when the pace is up.
The Replica · LS2 FF805 Thunder Carbon · Fermín Aldeguer 2025
The kid with the crayons.
CARBON 6K · ECE 22.06 · SHARP ★★★★
1,280 G CLAIMED · 1,341 G MEASURED
From €587,39 →1,280 G CLAIMED · 1,341 G MEASURED
Where the livery comes from
It looks like a scribble. That's the point.
Most replica liveries are airbrush theatre — chrome fades, tribal claws, a sponsor block where the story should be. Aldeguer's 2025 helmet went the other way. Hand-drawn strokes in fluoro yellow, hot pink and blue, laid over the bare carbon weave like a kid let loose on a school desk. There's a skull on the crown, and a 54 on the back big enough to read from a grandstand. What makes it work is what's underneath. The carbon isn't painted over — it shows through the gaps, so the shell's own structure becomes part of the drawing. On a helmet at this price, that's an unusual amount of restraint: the finish that costs the most to make is the one they left visible.
The shell under the scribble
The graphics are the cheap part.
- ShellCarbon 6K monocoque, three shell sizes across the range
- Weight1,280 g ± 50 claimed — independently measured at 1,341 g
- CertificationECE 22.06. Four stars at SHARP. Not the FIM version
- VisorOptical Class A, anti-scratch, Pinlock 120 Max Vision ready
- RetentionDouble-D-ring, emergency cheek-pad release tabs
- FitIntermediate oval by test, long oval per LS2 — try before you commit
Every angle.
The 54 on the tail, the skull on the crown, and the helmet doing its actual job — tucked behind the screen, where nobody is looking at the paint.
A replica is a promise that the thing on the shelf is the thing on the grid. Most of them only keep half of it.Source: ls2helmets.com · AI-generated backgrounds · Inter-Pace
Who it's for.
02
Sporty road riders
Who put outright performance over touring comfort — a helmet that never holds them back.
03
Fermín Aldeguer fans
Who want the genuine article — the same flagship shell in the replica livery, no compromise.
The verdict
Worth knowing before you buy.
Two honest caveats, because you'd find them anyway. First: LS2 claims 1,280 g ± 50; an independent road test weighed 1,341 g. Still light for a full carbon lid, but not the number on the box. Second: this replica is ECE 22.06, not the FIM-homologated version of the Thunder — if your race organiser demands an FIM sticker, you want the FIM variant, not this one. What you do get: a carbon shell rated four stars by SHARP, a Class A visor ready for a Pinlock, and the only livery in the paddock that looks like it was drawn rather than designed.
Shop the Aldeguer replica · €587,39Sizes XS–XXL, ECE 22.06, Double-D. Not sure of your size? The helmet-size guide takes two minutes.