LS2 FF817 Challenger II Helmet – Dravix Hi-Vis Yellow
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Size chart LS2 FF817
| Size | Head circumference (cm) | Head circumference (inch) |
|---|---|---|
| XXS | 51–52 cm | 20.1–20.5 in |
| XS | 53–54 cm | 20.9–21.3 in |
| S | 55–56 cm | 21.7–22.0 in |
| M | 57–58 cm | 22.4–22.8 in |
| L | 59–60 cm | 23.2–23.6 in |
| XL | 61–62 cm | 24.0–24.4 in |
| XXL | 63–64 cm | 24.8–25.2 in |
| 3XL | 65–66 cm | 25.6–26.0 in |
How to measure your helmet size correctly: To find the right helmet size, measure your head circumference with a flexible tape measure.
It is important that the tape measure runs around the widest part of the head – only then will you get a correct result.
Place the tape measure at the front, about 1–2 cm above the eyebrows, and run it along the sides above the ears.
At the back, the tape must run over the largest part of the back of the head (not too low on the neck). The tape may run slightly at an angle – what matters is that it sits all the way around the largest points of the head.
Make sure the tape measure sits snugly but does not dig in. Measure 2–3 times for the most accurate result. You can then compare the measured value in centimetres (cm) with our size chart.
Tips for an accurate result
- Keep hair flat (e.g. do not measure over a voluminous hairstyle)
- Keep the tape horizontal, i.e. along the largest circumference
- Do not measure too loosely
- For values between two sizes:
→ usually choose the larger size (depending on helmet model / fit)
Important note on fit
The right helmet should fit firmly without causing uncomfortable pressure points.
A new helmet may feel a little tighter at first, as the inner lining adapts slightly over time.
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- Genuine parts & verified quality
- Personal email support
- 14-day returns — in stock ships within 24h
Shipping & Returns
We ship with DHL and FedEx — express on request. If an item is in stock, express delivery can often go out within 1 business day. Standard delivery takes about 2–5 business days domestically and usually around a week worldwide. Please check the available shipping options and delivery times in your cart, as we offer several carriers depending on the country.
Returns must be registered in advance by email and are possible in line with our cancellation policy (14-day return request + 14-day return window after approval). Please note: unregistered returns are not accepted. You'll find all details on conditions, exceptions and refunds in our cancellation policy.
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Fluorescent yellow exists because human eyes find it before anything else. On the Dravix blocks it covers enough area to register in a mirror rather than reading as a stripe.
An HPFC shell in three sizes
LS2 builds the Challenger II from HPFC, a fibreglass composite laid up for stiffness without bulk. The result is 1500 g with an integrated sun visor — the weight you notice on hour four, not on the spec sheet.
LS2 tools three shells for this model. The practical effect is proportion: the helmet looks right on a small head and does not balloon on a large one.
Der Verzicht auf Carbon ist hier eine Entscheidung, keine Sparmaßnahme. HPFC nimmt Aufprallenergie über eine größere Verformung auf, was bei den Geschwindigkeiten und Sturzarten, die auf Landstraße und Autobahn vorkommen, sinnvoller ist als maximale Steifigkeit.
About the Dravix Hi-Vis Yellow finish
This is the most conspicuous Challenger II. The matt coat helps: it scatters light evenly instead of throwing one hot highlight, which keeps the fluorescent area readable from wider angles. If you commute in traffic or ride through northern winters, this decor does the most work of any in the range.
Airflow from the top down
Top vents, ducted EPS, rear extractors, breath deflector. A touring layout: quieter than a chin-fed race helmet, and enough flow to keep a visor clear on a motorway run.
Kanäle im EPS statt nur Löchern in der Schale — das ist der Unterschied, der zählt. Luft, die zwischen Schale und Polster hängen bleibt, kühlt nichts. Hier wird sie über den Kopf geführt und hinten wieder herausgezogen.
Seeing out
The visor is scratch-resistant, UV-stable and cut for maximum field of view, with a double-injection seal that keeps weather out. A Pinlock 120XLT MaxVision insert is in the box, and a button lock holds the visor shut.
Inside sits a tinted screen you drop when the sun does. The easy-removal system means it can be taken out and washed rather than smeared clean in place.
Der Pinlock 120XLT liegt bei, nicht als Extra. Das ist bei Tourenhelmen dieser Preisklasse nicht selbstverständlich und spart rund 30 Euro, die andernfalls beim ersten kalten Morgen fällig würden.
Holding on, and letting go
Micrometric metal buckle, reinforced strap, emergency release for the cheek pads, and a metal certification plaque. Straightforward, and all of it standard.
Die Notfall-Entriegelung ist ein Detail für den Tag, an dem jemand anders den Helm abnehmen muss: Zwei Laschen ziehen die Wangenpolster seitlich heraus, sodass der Helm ohne Zug am Kopf abgestreift werden kann. Rettungskräfte kennen das System.
The bit you actually touch
The liner is COOLMAX — a fabric built to move moisture away from the skin and dry quickly, which is exactly what a touring helmet needs. It is antibacterial, hypoallergenic, removable and washable.
Der magnetische Windabweiser ist eines der Details, die man im Alltag zu schätzen lernt: kein Fummeln mit Druckknöpfen bei Kälte, er sitzt beim Einsetzen von selbst richtig. Zum Waschen kommt er genauso schnell wieder heraus.
What it is built for
Sein Einsatzgebiet ist der Alltag mit Anspruch: Pendeln, Landstraße, gelegentlich eine längere Tour. Dafür ist die Ausstattung eher zu gut als zu knapp — Notfall-Entriegelung, COOLMAX und Metallplakette findet man in dieser Preisklasse selten zusammen.
In the box
- LS2 FF817 Challenger II helmet — Dravix Hi-Vis Yellow
- Elastic carrying bag
- Pinlock 120XLT MaxVision anti-fog insert
- Reflective stickers
Specification
- Shell — HPFC high-performance fibreglass composite, three shell sizes
- Weight — 1500 g (±50 g)
- Sizes — XXS to XXXL (eight sizes)
- Homologation — ECE 22.06
- Retention — micrometric metal buckle, reinforced strap, emergency release, metal safety plaque
- Visor — Max Vision aperture, scratch-resistant, UV-stable, double-injection seal, button lock, Pinlock 120XLT MaxVision supplied
- Sun visor — integrated, tinted, tool-free removal system
- Ventilation — top intakes, rear extractors, ducted EPS, breath deflector
- Liner — COOLMAX, antibacterial, hypoallergenic, removable and washable
- Chin curtain — magnetic
- Intercom — prepared for the current LS2 Bluetooth system
- Finish — Dravix graphic, matt
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Built-in sun visor
Included
LS2 Pinlock 120XLT MaxVision Insert DKS611
Included free
helmet only
Your helmet is always included · anything marked Included already comes with it · pick your size in the buy box above
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LS2 FF817 Challenger II Helmet – Dravix Hi-Vis Yellow
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