
HJC i100 Modular Helmet: Value, Versatility, & Features

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Hey Speed Addicts family! Look what we’ve got today — the HJC i100 modular helmet. What makes this helmet so cool? With the push of a button, it transforms from a full-face lid to an open-face cruiser.
Yeah, you heard that right — one click and boom, wide open. And we’ve already gone deep on the features in another YouTube video, but today’s about getting it out on the road.
This article is based on the video by Speed Addicts.
Before we do that, let’s run through the features that stand out.
A fully rotational modular helmet built for comfort, versatility, and all-day riding performance.
- Chin bar rotates for true open or full-face riding
- Integrated sun visor and Pinlock-ready face shield with lens included
- Bluetooth-ready to pair with SMART HJC systems
- Heavier than average modular helmets at 4.19 lbs
Key Features That Make This Helmet Shine
It comes with a Pinlock-ready clear shield, and yes, the insert is included. If you’ve ever ridden on a cool, damp morning without a Pinlock, you’re missing out. Total game changer.
There’s also a drop-down internal sun shield that’s easy to deploy with your left thumb. This thing makes sunny days way more manageable.

And, of course, it’s Bluetooth-compatible. It’s built to pair with HJC’s accessory communicators, so you can take calls, blast music, or chat with your crew while riding.
On the Road: How It Performs in Real Life
Alright folks, enough of the table talk. We strapped this thing on and hit the streets.
Right off the bat — that flip-up function is slick. You can transform the helmet on the fly, just by hitting the side button. Open-face freedom in seconds.
A Look at the Price and Style Options
The solid white version we’re testing today retails for $320. But HJC also offers it in black, gray, and a handful of graphic options. Some of those fancier styles add a bit to the price tag.

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Still, for a modular helmet with these features? That’s a bargain.
Sun Shield, Pinlock, and the Little Things That Matter
The drop-down sun visor helps cut glare without needing to swap out visors. Super easy to use and ideal for long, sunny rides.
Then there’s that Pinlock insert — one of the best features for cold weather riders. If you’ve ever had your visor fog up mid-ride, you know how dangerous and annoying that can be. The Pinlock creates a sealed, dual-pane effect that completely eliminates fog.
Swapping the visor is easy too, thanks to dual detents on each side. The only gripe? The detents are a little small. Riders with gloves or short nails might find them a little fiddly.
Want a Tinted Visor? That’s Covered Too
HJC sells optional tinted face shields separately. So if you want that darker look — or just more sun protection — you can upgrade for a small extra charge.
Clear, anti-scratch face shield with 99% UV protection and Pinlock compatibility—delivers fog‑free vision and excellent clarity for daily riding.
- Fits HJC i100 modular helmet perfectly
- Built‑in pins for easy Pinlock insert installation
- 99 % UV protection keeps glare away
- Anti-scratch coating enhances durability
- Pin detents can be tight, need careful handling
- Pinlock insert sold separately
Ventilation: Surprisingly Good for a Modular
The i100 has two main vents:
- A three-position chin vent
- A three-position top vent
Those funnel air through EPS channels that run across the interior and out the always-open rear exhaust. Even in full-face mode, this thing moves a surprising amount of air.
Perfect for warmer rides — or those damp mornings when you need airflow to manage humidity inside the helmet.
Weight and Fit: What to Expect
This medium-size i100 weighs just over 4 pounds, which is actually on the lighter end for a modular.
Shell sizing is split into three groups:
- XS & S share one shell and EPS
- M & L share another
- XL & XXL share their own
That means better proportional fit and less bobblehead effect.
This medium fits a little snug, especially up top. For long-term comfort, we’d swap the top crown pad for something a bit thinner to relieve pressure. Thankfully, the padding is fully adjustable — and removable for washing.
Interior Comfort and Customization
One of the best parts? You can swap out the cheek pads and top liner to dial in your fit.
Revitalize your HJC i100 with its OEM SuperCool™ liner—moisture-wicking, odor-fighting, and easily swappable for a fresh, comfortable ride. | Replaces worn cheek pads with moisture-wicking, antimicrobial SuperCool™ fabric to refresh your i100 helmet feel and restore snug comfort. |
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Revitalize your HJC i100 with its OEM SuperCool™ liner—moisture-wicking, odor-fighting, and easily swappable for a fresh, comfortable ride.
- Perfect fit and feel for i100 shell
- Silver antimicrobial fabric keeps odors at bay
- Moisture-wicking material keeps you cool
- Removable liner makes cleaning easy
- Only available in limited thickness sizes
- Extra liner purchase needed for different fit
Replaces worn cheek pads with moisture-wicking, antimicrobial SuperCool™ fabric to refresh your i100 helmet feel and restore snug comfort.
- OEM-fit pads restore original helmet feel
- Super-soft, moisture-wicking liners
- Silver antimicrobial fabric stays fresher
- Multiple thicknesses offer customizable fit
- Limited size availability may affect fit
- Extra cost for alternate thicknesses
The interior’s also washable — just toss it in the machine, let it air dry, and boom — fresh lid.
Bluetooth Integration: Stay Connected
This helmet integrates cleanly with HJC’s 10B and 20B Bluetooth systems, both designed in partnership with Sena.
Here’s the breakdown:
HJC 10B
- Based on Sena’s SMH5 unit
- ~$140
- Perfect for casual riders who want music and phone calls
HJC 20B
- Based on Sena 20S
- ~$300
- Full-featured with better range and multitasking capabilities

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If you just want tunes and calls for city rides, go 10B. If you’re touring or group riding often, that 20B is worth the upgrade.
Durability and Build Quality: What’s the Trade-Off?
Let’s be real — this helmet feels a little plasticky in spots. The shell is polycarbonate, and some of the fittings aren’t ultra-premium.
But hey — you’re getting all this at $320. That’s less than half the cost of some premium modular helmets. It’s a fair trade-off for riders who want value without completely compromising features.
Warranty and Support
HJC backs the i100 with a three-year warranty, which is solid peace of mind. And since it’s from a top-tier brand, replacement parts and support are easy to find.
Final Thoughts: Is It Worth It?

For the price? Absolutely.
You get:
- A modular helmet that flips to open-face
- Pinlock anti-fog shield
- Internal sun visor
- Washable and adjustable interior
- Bluetooth compatibility
- Solid ventilation
Sure, the finish isn’t Shoei-level. But you’re paying a fraction of the cost. If you’re value-conscious or want a dependable second helmet, the HJC i100 hits the mark.
That wraps up our real-world review of the HJC i100 modular helmet.
A fully rotational modular helmet built for comfort, versatility, and all-day riding performance.
- Chin bar rotates for true open or full-face riding
- Integrated sun visor and Pinlock-ready face shield with lens included
- Bluetooth-ready to pair with SMART HJC systems
- Heavier than average modular helmets at 4.19 lbs
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