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HJC Semi-Flat Black/Blue CL-17SN Boost MC-2SF Helmet w/Frameless Dual Lens Shield - 853-724

  • Part #:
    3310503L
  • Manufacturer Part #:
    853-724

MSRP Price: $174.99

Our Price: $157.49

You Save:
$17.50 (10%)
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Overview of HJC Semi-Flat Black/Blue CL-17SN Boost MC-2SF Helmet w/Frameless Dual Lens Shield - 853-724

  • SNELL & D.O.T. Approved CL-17 Sizes XS to 2XL
  • D.O.T. Approved Only CL-17 Plus sizes 3XL to 5XL
  • Advanced Polycarbonate Composite Shell: Lightweight, superior fit and comfort using advanced CAD technology. 2 Shell sizes 1). XS to MD 2). LG to 5XL & 3 EPS Liners.
  • HJ-09 FRAMELESS SNOW SHIELD: Choose from Dual Lens Snow Frameless shields features; increased field of vision and integrated exhaust ventilation.
  • RapidFire™ Shield Replacement System: Simple and secure shield ratchet system provides ultra-quick, tool-less removal and installation for efficient operation. 2-Stage shield closure system with shield locking system for a secure seal.
  • “ACS” Advanced Channeling Ventilation System: Full front to back airflow flushes heat & humidity up & out.
  • SuperCool™ Moisture-Wicking Interior: Fully removable cheek pads and liner. Anti-Bacterial Fabric. All sizes of cheek pads are interchangable in all helmet sizes.
  • CL-17SN comes with; Breathguard and Chin Curtain 
  • Weight: XS to MD 3.63 lbs. (1,650 +/- 30g ); LG to 2XL 3.92 lbs. (1,780 +/- 30g ); 3XL to 5XL 3.90 lbs. (1,770 +/- 30g)


Included Items:

(1) Helmet

(1) Helmet bag

Instruction & manual

Specs for HJC Semi-Flat Black/Blue CL-17SN Boost MC-2SF Helmet w/Frameless Dual Lens Shield - 853-724

Age Adult
Color Black
Color Blue
Color - Primary Black
Helmet Style Full Face
Safety Rating Snell
Safety Rating DOT
Size Large
Type Dual Lens
Units Each
Weight 5.60 lbs

Specs for HJC Semi-Flat Black/Blue CL-17SN Boost MC-2SF Helmet w/Frameless Dual Lens Shield - 853-724

Age Adult
Color Black
Color Blue
Color - Primary Black
Helmet Style Full Face
Safety Rating Snell
Safety Rating DOT
Size Large
Type Dual Lens
Units Each
Weight 5.60 lbs

HJC Sizing Information

How to size
CL-17/CL-17 PLUS HELMET
INCHES CM HAT SIZE
X-SMALL 21 1/4 - 21 5/8 54-55 6 3/4 - 6 7/8
SMALL 22 - 22 1/2 56-57 7 - 7 1/8
MEDIUM 22 7/8 - 23 1/4 58-59 7 1/4 - 7 3/8
LARGE 23 5/8 - 24 60-61 7 1/2 - 7 5/8
X-LARGE 24 3/8 - 24 3/4 62-63 7 3/4 - 7 7/8
XX-LARGE 25 1/4 - 25 5/8 63-64 7 7/8 - 8
XXX-LARGE 25 5/8 - 26 65-66 8 1/8 - 8 1/4
XXXX-LARGE 26 3/8 - 26 3/4 67-68 8 3/8 - 8 1/2
XXXXX-LARGE 27 1/4 - 27 5/8 69-70 8 5/8 - 8 3/4

Fitment for HJC Semi-Flat Black/Blue CL-17SN Boost MC-2SF Helmet w/Frameless Dual Lens Shield - 853-724

See if this part fits your ride

Part 3310503L fits the following machines

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Instructions and Manuals for HJC Semi-Flat Black/Blue CL-17SN Boost MC-2SF Helmet w/Frameless Dual Lens Shield - 853-724

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