Shoei Neotec 3 vs HJC i90

Where the money genuinely goes

1. The certification is a version apart

Both helmets carry DOT, so both are legal everywhere in the US. Both add ECE — but ECE 22.06 and ECE 22.05 are not the same claim. 22.06 replaced 22.05 and added oblique-impact testing for rotational forces, more impact points on the shell, and a shield-impact requirement. A 22.05 helmet cleared a real protocol; a 22.06 helmet cleared a broader one. This is the single most defensible reason to spend the difference, and it is explained in full in our certification guide.

2. Noise

Shoei’s pitch for the Neotec line is quietness, and the engineering behind it is unglamorous: a tight seal where the chin bar meets the shell, a well-fitted neck roll, and aero shaping around the base. Neither maker publishes a decibel figure — nobody in this industry does in a way that can be compared — so we will not quote one. What we will say is that base sealing is the mechanism that matters, that a flagship touring helmet is where makers spend effort on it, and that the effect over a long day is real. Our quietest helmets page covers the mechanism properly, along with the reminder that earplugs beat any helmet upgrade.

Where the gap is smaller than the price suggests

The feature list is nearly identical

Drop-down internal sun visor: both. Flip-front chin bar: both. Removable washable liner: both. Speaker pockets: both. Pinlock-ready shield: both. If you write out what a touring modular is supposed to do, the i90 does all of it. That is the uncomfortable part of this comparison for anyone justifying a flagship purchase on features.

Fit is a wash — and the i90 wins one case

Both are built on an intermediate-oval interior, the industry default. The i90’s cheek pads are the roomier of the two, which is precisely why it is our top pick on helmets for glasses. If you wear prescription glasses, the cheaper helmet is the better helmet for you, and that is not a consolation prize.

Weight, with a caveat

Shoei publishes 1,850 g for the Neotec 3. HJC does not publish a figure for the i90, so the spec table says so rather than guessing. A polycarbonate shell is generally heavier than a hand-laid composite of the same strength, so the i90 is unlikely to be lighter — but we are not going to state a number we cannot source. Either way, both are modulars, and both are heavier than an equivalent full-face for the structural reasons covered on modular vs full-face.

Which one should you buy?

Buy the Neotec 3 if

You ride long distances, regularly, in weather you did not choose. The argument for the flagship is cumulative: the newer certification, the quieter base seal and the better interior compound over hours, and touring is where hours happen. It is also the right call if you are keeping the helmet for its full five-year service life and want the most current standard on your head for all of it.

Buy the i90 if

You commute, you ride at weekends, or this is your first modular and you are not yet certain a flip-front is what you want. It is also the better buy if you wear glasses, and the sensible buy if the difference in price is the difference between a modular and no modular at all. The i90 appears on our modular ranking and HJC range pages for the same reason: it is an enormous amount of certified helmet for the money.

The third option worth considering

If your reason for wanting a modular is convenience at stops rather than touring comfort, a lighter full-face plus a habit of taking the helmet off is a legitimate alternative, and it is cheaper and safer than either of these. We are not going to pretend the flip-front is free — it adds a hinge, a latch and weight to the front of the helmet.