LS2 FF817 Challenger II Helmet – Solid Matt Navy Blue
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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.
- Worldwide shipping
- 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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Navy is the quiet alternative to black — dark enough to be understated, blue enough that nobody mistakes it for a rental helmet.
An HPFC shell in three sizes
The HPFC shell is what makes the numbers work: 1500 grams, ECE 22.06, and a price that leaves room for the rest of your gear.
Three shell sizes cover XXS to XXXL. That is more than the single-shell helmets in this bracket manage, and it means the small sizes are not carrying a mid-size shell's worth of polystyrene.
Was HPFC von billigem Polycarbonat trennt, ist die Laminierung: gewebte Glasfasermatten in mehreren Lagen statt gespritztem Kunststoff. Das macht die Schale dünner bei gleicher Festigkeit und ist der Grund, warum sich der Helm kompakter anfühlt, als die 1500 Gramm vermuten lassen.
About the Solid Matt Navy Blue finish
Matt navy reads almost black in dull light and only shows its colour properly in sun, which is a large part of the appeal. It sits well against both blue and silver bodywork, and like all matt finishes it hides fine scratches better than gloss — while needing a matt-safe cleaner rather than polish.
Airflow from the top down
Air enters at the crown and leaves through the rear extractors, carried across the scalp by ducts cut into the polystyrene. There is no chin intake — the airflow here is designed around long, steady speeds rather than track heat.
Ehrlich gesagt: Eine Kinnbelüftung hat der Challenger II nicht. Sportlichere Helme führen dort Luft direkt aufs Visier, was gegen Beschlag hilft — hier übernimmt das der mitgelieferte Pinlock. Wer viel im Stadtverkehr bei Kälte fährt, sollte das wissen; auf der Autobahn fällt es kaum auf.
Seeing out
Vision is the point here: a Max Vision aperture, scratch-resistant coating, UV protection, and a twin-injection seal around the edge. The supplied Pinlock 120XLT insert handles fogging; the button lock stops the visor lifting at speed.
The sun visor drops down from inside the shell and retracts fully out of the way. LS2 fits it with a tool-free removal system, so cleaning it — or taking it out entirely — needs no workshop trip.
Die Knopfverriegelung hält das Visier auch bei Autobahntempo geschlossen — ohne sie hebt der Fahrtwind ein Visier irgendwann an. Ein Handgriff öffnet sie, auch mit Handschuhen.
Holding on, and letting go
Retention is a micrometric metal fastener — set once, one click thereafter. The liner has an emergency release so first responders can remove the cheek pads without moving your head.
Mehrdichtes EPS heißt: unterschiedlich harte Schaumzonen in einer Schale. Harte Bereiche fangen schwere Schläge ab, weichere die leichten — ein einheitlicher Block kann immer nur einen von beiden Fällen gut abdecken.
The bit you actually touch
COOLMAX is the liner material, chosen for moisture management on long days. Add a magnetic chin curtain that clicks into place without fiddling, and pre-moulded recesses for LS2's current Bluetooth system.
Die Aussparungen für das LS2-Bluetooth-System sind schon im EPS geformt. Wer eine Gegensprechanlage nachrüstet, muss also nichts ausschneiden oder kleben — die Lautsprecher verschwinden bündig, ohne aufs Ohr zu drücken.
What it is built for
Der Challenger II ist ein Tourenhelm und macht daraus keinen Hehl: ruhig statt sportlich, komfortabel statt kompromisslos leicht, mit einer Ausstattung, die auf lange Tage ausgelegt ist. Wer einen Trackday-Helm sucht, ist beim FF805 Thunder besser aufgehoben; wer täglich pendelt oder Wochenendtouren fährt, findet hier mehr, als der Preis vermuten lässt.
In the box
- LS2 FF817 Challenger II helmet — Solid Matt Navy Blue
- 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 — Solid navy blue, matt
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Built-in sun visor
Included
LS2 Pinlock 120XLT MaxVision Insert DKS611
Included free
helmet only
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LS2 FF817 Challenger II Helmet – Solid Matt Navy Blue
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