HJC C91 JYN Modular Helmet MC1
HJC C91 JYN Modular Helmet MC1
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- Advanced Polycarbonate Composite Shell — With adjustable chinbar; lightweight, superior fit and comfort using advanced CAD technology
- Advanced Channeling Ventilation System (ACS) — Full front to back airflow flushes heat and humidity up and out
- Pinlock® Prepared HJ-17 Shield — Provides 99% UV protection
- RapidFire™ Shield Replacement System — Simple and Secure shield ratchet system provides ultra-quick, tool-less shield replacement
- Interior Parts — Moisture-wicking and dry
- Integrated Sun Visor — Black dark smoke sun visor deploys quickly and easily; anti-scratch coated and with user friendly sliding system
- Crown and Cheek Pads — Removable and washable
The HJC C91 JYN Modular Helmet is the entry point into HJC's modular lineup — a practical, DOT and ECE 22.06 certified flip-front helmet that gives everyday riders all the convenience of a modular without a premium price tag. The polycarbonate composite shell is lightweight and durable, the single-lever chin bar release is intuitive with gloves on, an integrated sun visor provides on-demand light management, the face shield is Pinlock-prepared for fog management, and the removable washable interior maintains comfort through regular riding seasons. SMART HJC Bluetooth compatible. At The Helmet Shop, the C91 is the modular we recommend when a rider wants flip-front practicality and HJC quality at the most accessible price in the lineup.
Specifications
| Brand | HJC |
|---|---|
| Model | C91 |
| Helmet type | Modular |
| Shell | Advanced Polycarbonate Composite (APC) |
| Certification | DOT FMVSS 218 |
| Face shield | HJ-17 |
| Pinlock | Pinlock-ready (insert sold separately) |
| Internal sun shield | Yes — HJ-V5 drop-down sun shield |
| Bluetooth / communication | SMART HJC 10B / 20B compatible; speaker pockets |
| Sizes available | XS, S, M, L, XL, 2XL, 3XL, 4XL, 5XL |
| Colors / colorways | MC1 |
| Approx. weight | 3.75 lbs (size M, per HJC/retailer data) |
| Part numbers | 0100-2871 – 0100-2879 |
Frequently Asked Questions
Is the HJC C91 DOT approved?
Yes. The HJC C91 carries DOT FMVSS 218.
What face shield fits the HJC C91?
The C91 uses the HJC HJ-17 shield. Pinlock status: Pinlock-ready (insert sold separately). Replacement clear, smoke, dark smoke and RST mirrored shields are available at The Helmet Shop.
Does the HJC C91 have a built-in sun visor?
Yes. Internal sun shield: HJ-V5 drop-down sun shield.
Can I put a Bluetooth headset in the HJC C91?
Yes — sMART HJC 10B / 20B compatible; speaker pockets. The Helmet Shop can install a Bluetooth headset for you — we install, charge and test every headset in the helmet before it ships, and pair two headsets when you order two helmets together.
What sizes does the HJC C91 JYN Modular Helmet MC1 come in, and how do I pick one?
This listing is available in XS, S, M, L, XL, 2XL, 3XL, 4XL, 5XL. Measure your head circumference about one inch above the eyebrows and compare it with the HJC size chart. A new helmet should feel snug all around with even pressure and no hot spots; the liner breaks in slightly.
Is the interior removable and washable?
Yes. The comfort liner and cheek pads remove for hand washing; let them air dry before reinstalling.
What do the MC codes in the color names mean?
HJC uses MC (multi-color) codes to identify each colorway of a graphic. An “SF” suffix means a semi-flat (matte) finish, and “H” indicates a hi-viz color. Check the product photo for each code.
Why Buy HJC From The Helmet Shop?
- Authorized HJC dealer — genuine HJC product with full manufacturer warranty support.
- Bluetooth headset installs done right: we install, charge and test every headset in the helmet before it ships, and when two helmets are ordered together we pair the two headsets so they work out of the box.
- Fast US shipping from Ormond Beach, Florida, and real helmet experts on the phone.
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