StoreDeal.ai store
Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • deal.ai apps
Black Friday 2026
  • Walmart
  • Best Buy
  • Target
  • TVs
  • Laptops
  • Headphones
  • Apple
  • Gaming
  • Vacuums
  • Kitchen
  • Toys
  • Smartwatches
  • Tablets
  • Furniture
  • Mattresses
© Deal.ai Inc.
TermsPrivacy
Deal.ai › LS2 › Motorcycle Helmets
LS2
LS2 FF817 Challenger II Viper Full Face Helmet

LS2 FF817 Challenger II Viper Full Face Helmet

Best price now

$286.91at MotoinChecked Nov 9

Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.

Visit Motoin

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Enter to send, Shift+Enter for a new line

Price facts

  • Last seen at $286.91 at Motoin on Nov 9.

Our take on the LS2 FF817 Challenger II Viper Full Face Helmet

The LS2 FF817 Challenger II Viper is a full-face motorcycle helmet built around a polycarbonate shell with a drop-down sun visor and a Pinlock-ready clear shield. It is aimed at street and touring riders who want a flip-down sun visor and a quick-release buckle without paying for a premium shell material. At around 52.9 oz it sits on the heavier side for its class, so riders who prioritize low weight may prefer a fiberglass or carbon rival. It competes with mid-range full-face helmets from HJC and Scorpion, offering a similar feature set for less than premium brands.

Best forEveryday street and commuting ridersTouring riders who want a built-in sun visorRiders on a budget who still want a full-face helmetNew riders buying their first full-face helmet
Pros
  • Drop-down internal sun visor for bright conditions
  • Pinlock-ready clear shield
  • Quick-release micrometric chin strap buckle
  • Removable, washable comfort liner
  • Four shell sizes across the S to XL range
Cons
  • Around 52.9 oz, heavy for a full-face helmet
  • Polycarbonate shell rather than fiberglass or carbon
  • Wind noise reported at highway speed
  • Ventilation is adequate rather than strong

LS2 FF817 Challenger II Viper Full Face Helmet prices at every store

  • MotoinNew

    In stock

    $286.91+ $37.83 shippingChecked Nov 9
    Visit Motoin

Store links may earn us a commission. Price via Klarna.

LS2 FF817 Challenger II Viper Full Face Helmet price history

Lowest price we've seen: $286.91 on Nov 9 at Motoin. Tracked across 1 store since Nov 9.

What reviewers say

Owners generally rate the Challenger II as solid value for a full-face helmet with a sun visor. Most praise the fit, the visor mechanism and the buckle, while weight and highway noise come up as the main gripes.

What people mention
  • WeightCriticisedRiders note the helmet feels heavy compared with lighter fiberglass and carbon rivals.
  • NoiseCriticisedWind noise becomes noticeable at highway speeds, more so than on premium helmets.
  • Sun visorPraisedThe drop-down internal visor is easy to use and cuts glare on bright days.
  • FitPraisedOwners find the padding comfortable and the sizing true across the shell range.
  • VentilationMixedAirflow is fine around town but some riders want stronger venting on hot rides.
  • BucklePraisedThe micrometric quick-release strap is quick to fasten and adjust.

Specifications

Weight (oz)
52.91Source
Color
Blue, Black, Red, WhiteSource
Helmet Size
S, M, L, XLSource
Type of Helmet
Full Face HelmetSource

Questions and answers

Is the LS2 FF817 Challenger II Viper good for beginners?
Yes. It is a full-face helmet with a sun visor and a simple quick-release buckle, which suits new riders. Just check the fit in person, since sizing runs across four shell sizes.
Does it have a Pinlock lens included?
The clear shield is Pinlock-ready, but the anti-fog insert is usually sold separately. Confirm with the seller before you buy if you need it included.
How does it compare with the original Challenger?
The Challenger II updates the shell and visor system and keeps the drop-down sun visor. It remains a polycarbonate helmet, so it is still heavier than fiberglass rivals.
Is the helmet too heavy for long rides?
At around 52.9 oz it is on the heavy side. Some riders notice neck fatigue on long tours, while others find it fine for commuting and day rides.
Can I replace the liner and visor?
Yes. The comfort liner is removable and washable, and the shields and internal sun visor are replaceable LS2 parts. Check that the parts match the FF817 model.
What sizes does it come in?
It comes in S, M, L and XL across four shell sizes, in blue, black, red and white. Measure your head before ordering, as fit varies between brands.
Where is the LS2 FF817 Challenger II Viper Full Face Helmet cheapest?
At Motoin, for $286.91, as of our latest check.

More from LS2

  • L
    LS2 FF817 Challenger II Flaman Full Face Helmet
    LS2 FF817 Challenger II Flaman Full Face Helmet
  • L
    LS2 Challenger II Solid Full-Face Helmet
    LS2 Challenger II Solid Full-Face Helmet
  • L
    LS2 FF817 Challenger II Titan Full Face Helmet
    LS2 FF817 Challenger II Titan Full Face Helmet
  • L
    LS2 MX708 Fast II Duck M.H-V Green H-V Yellow Offroad Helmet
    LS2 MX708 Fast II Duck M.H-V Green H-V Yellow Offroad Helmet
  • L
    LS2 Explorer Carbon Frontier II Helmet
    LS2 Explorer Carbon Frontier II Helmet
  • L
    LS2 Challenger II Dravix Full Face Helmet
    LS2 Challenger II Dravix Full Face Helmet
  • L
    LS2 Challenger II Viper Full Face Helmet
    LS2 Challenger II Viper Full Face Helmet
  • L
    LS2 Apollo
    LS2 Apollo
All LS2 deals and products →

More motorcycle helmets

  • S
    Schuberth SR2
    Schuberth SR2
  • A
    Arai Regent-X
    Arai Regent-X
  • I
    ILM Full Face Motorcycle Helmets
    ILM Full Face Motorcycle Helmets
  • S
    Scorpion EXO-T520
    Scorpion EXO-T520
  • F
    Fox Racing V1 Helmet
    Fox Racing V1 Helmet
  • R
    Raider Journey Open Face ATV Helmet Black
    Raider Journey Open Face ATV Helmet Black
  • 5
    509 Altitude 2.0 Offroad Helmet Gray/Yellow Size 2X
    509 Altitude 2.0 Offroad Helmet Gray/Yellow Size 2X
  • A
    AFX FX-19R Helmet
    AFX FX-19R Helmet