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HJC RPHA ST Helmet - Solid
  • HJC RPHA ST Helmet - Solid - Black
  • HJC RPHA ST Helmet - Solid - Matte Black
  • HJC RPHA ST Helmet - Solid - Matte Black
  • HJC RPHA ST Helmet - Solid - Matte Black
  • HJC RPHA ST Helmet - Solid - White
  • HJC RPHA ST Helmet - Solid - Silver

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Video Reviews (2)

HJC RPHA ST Helmet - Solid Videos



  • Advanced PIM (Premium Integrated Matrix) construction: fiberglass composite shell made from a blend of carbon fiber, fiberglass, aramid and organic non-woven fabric
  • Impact absorbing, multiple density EPS liner
  • Optically-superior anti-scratch Pinlock face shield (HJ-20ST): anti-scratch coating providing 95% UV protection
  • Pinlock insert included for the ultimate anti-fog system
  • Innovative center shield locking mechanism for a balanced, ultra secure seal
  • RapidFire II shield replacement system: quick, tool-less shield removal and installation
  • One-Touch integrated smoke-tinted SunShield (HJ-L1): 2 positions easy to use side lever, even with gloves on
  • Max air-flow top vent: variable air flow is adjusted by glove-friendly intake vent
  • ACS (Advanced Channeling Ventilation System): full front to back airflow flushes heat and humidity up and out
  • SilverCool Plus interior: moisture-wicking and odor-free interior with gingko and advanced silver anti-bacterial fabric
  • Crown and cheek pads are fully removable and washable
  • All sizes of cheek pads are interchangeable in all helmet sizes
  • 5 year limited warranty
  • Meets or exceeds DOT standards
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HJC RPHA ST Helmet - Solid 4.2 5 22 22
Great helmet for the price Moving from HJC's CL-17 as my main helmet - the first thing that struck me is how light this helmet feels. The fit was a bit tight, but this is a medium and I'm right between M and L - so I don't think this helmet is sized small. Also, unlike the CL-17, this model's medium and large size share the same shell - so if break-in isn't enough to loosen it up to a comfortable level, I can always swap out the liner and pads. So I decided to keep it and take to the roads, which I did. The vents are a lot easier to find and manipulate than the small ones on the CL-17. The sun visor is easy to operate with a gloved hand also - though not as easily as the integrated sun-shield in the IS-33 (which uses a spring loaded slider along the crown of the head to deploy and a button to retract). The fact that there is included a pin-lock insert in the box is awesome. Easy to install and it just works. No muss no fuss no fog. While this helmet does seem to block out more engine and road noise than the CL-17 there is a lot more wind noise caused by the top vent. When I reached up to the vent with my hand, the noise stopped- but unfortunately the noise was the same whether the vent was closed or open once I took it away. Leaning forward into more of a 3/4 position did lessen the noise, but that's not going to work for me. One of the main reasons I chose this helmet was it's billing as a touring helmet good for 3/4 to upright riding, so the wind-noise is a disappointment. I'd still recommend it though, in every other way, it fits the bill. September 23, 2015
Not bad The helmet is light weight and looks good. I was hoping ventilation would be a little better. Overall a good helmet though. August 31, 2015
Love it. Joe Rocket Prime, Biltwell Bonanza, a cheap Scorpion can't remember the model. This is a list of my other helmets. While I don't feel totally in love with the graphics of this helmet I am in love with everything else it offers. Very lite, great field of view, hi viz naming a few of the things it does exceptionally well. I wanted the Scorpion t1200 but Ben told pinlock was the way too go for true fog proofing. I'm glad I followed his advice. Helmet feels solid and graphic is done well. I'm not an expert, never had a 300+ helmet but it is totally worth every penny. I've put about 250 miles in it so far. September 1, 2015
Worth it Worth every penny. I have the high viz yellow one and it looks sick, fits my head perfectly, im 6'2" 190# and I wear a 7 1/2 hat, i got the Large in this helmet. Ive never worn a super expensive helmet but this one is the lightest ive ever worn. I ride a Honda Grom so i wanted a helmet that was super bright and visible. This def does the trick. I love the pop down sun visor so i dont have to swap out visors or wear sunglasses. You'll get a ton of compliments with this. August 31, 2015
Nice upgrade from my entry-level helmet I'd purchased an HJC CL-16 about two years prior, and am happy that I've upgraded to this RPHA and retire the CL-16 for passengers. I've been commuting and taking a few 2-3 hour rides on the weekend, and overall have been happy. It beats my previous helmet in every category and I enjoy the center latch for the visor and drop down shades. The fit is more snug than I'm used to, but I believe it'll loosen a little once I break in the cheek pads a little bit. Got the blue reflective shield to complete the look - love it. July 8, 2015
Like it better than my old Shoei... Fit is good. Pinlock faceshield works as advertised, as do the integral shades...I threw the chin thingy away... July 6, 2015
Overall a decent helmet I upgraded to the RPHA ST from my IS-16. I'll compare the two now. Pros: I love the included pinlock shield and center locking mechanism! It is more of a round oval which gave me that little bit extra room so my Scala Rider mic is not pressing against my face like with the IS-16. The internal visor works differently than the one in the IS but works effectively and the stock tint is fine for my rides in and out of sun/shade. Cons: I personally don't feel extra air flow over the IS-16. I do get blasted with air with my stock bike screen though so some air comes up into the helmet from there vs through the RPHA's vents. The lever for the visor is smaller and on the side, a bit harder to access with gloves compared with the center lever on the IS-16. I'm sure they moved the lever to try to improve airflow. No cut-outs for comm speakers. Padding feels thinner. Worst aspect for me is the deep groove the forehead pad leaves on my forehead for hours after wearing it. There is a large horizontal seam through the middle of the thin pad. I mostly commute to work and would prefer to look 'normal' soon after the ride. Maybe it is a badge of honor. Overall it is a decent helmet. If I didn't need the more oval shape, though, I would have tried the IS-17 and paid for the pinlock upgrade which would have saved a few dollars. June 22, 2015
Nice light helmet Big improvement over my HJC IS-16 in all areas. Absolutely zero fog on the vizor here in cold MN. May 18, 2015
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Have a functionality, fit, or otherwise product-specific question about the HJC RPHA ST Helmet - Solid? Ask it here! If you have a customer service or shipping question, please direct it to our Customer Service department.

HJC RPHA ST Helmet - Solid
Already Asked: 2 Questions, 5 Answers
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RevZilla Store asked: Why did you choose this?
Alfred D: It has the best review from Motorrad magazine. Sep 11, 2015
Darrin C: First it is for my girlfriend so I wanted her to have the most comfortable helmet and with my comparison between the rpha-st and the is-17 I felt this one would be the better choice. Safety and reliability are important so I made my choice based on that as well. Aug 25, 2015
J E: Wanted a better ventilated full face helmet. May 4, 2015
Hubert T: using the same helmet in Austria with my BMW GS 1150R Dec 22, 2014
Joshua B: Purchased based on test-winner in the new MOTORRAD helmet test.
At the latest test of the magazine MOTORRAD regarding sportive full-face helmets for sports-touring riders
HJCâ??s premium model RPHA ST performs as best and became test-winner in front of such prestigious models
like Schuberth S2, X-lite X-702 GT and Shark Speed-R.
Also, great review of the HJC RPHA ST helmet by Two Wheel Centre on YouTube.
Oct 21, 2014
A shopper asked: I'm trying to decide between the RPHA ST and the less expensive IS-17. One of the main complaints from reviewers of the IS-17 is that the internal sun shield isn't dark enough. Have you found the shield on the RPHA ST to be adequate? I wear prescription glasses/sunglasses and I'm trying to eliminate the switching.

More generally, if anyone has cross-shopped the IS-17 and RPHA ST, I'd be interested to hear your thoughts. Thanks!
Feb 22, 2015
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HJC Helmet Sizing:

Wrap a cloth measuring tape around your head just above your eyebrows. Pull the tape comfortably snug, and read the length.

Size Hat Size Measurement (in)
2XS 6 3/8 - 6 1/2 20 - 20 1/2
XS 6 5/8 - 6 3/4 20 7/8 - 21 1/4
SM 6 7/8 - 7 21 5/8 - 22
MD 7 1/8 - 7 1/4 22 1/2 - 22 7/8
LG 7 3/8 - 7 1/2 23 1/4 - 23 5/8
XL 7 5/8 - 7 3/4 24 - 24 3/8
2XL 7 7/8 - 8 24 3/4 - 25 1/4
3XL 8 1/8 - 8 1/4 25 5/8 - 26
4XL 8 3/8 - 8 1/2 26 3/8 - 26 3/4
5XL 8 3/4 27 1/4 - 27 5/8

RPHA Series, FG-Jet, and FG-17 Helmet Sizing ONLY:

Size Hat Size Measurement (in)
XS 6 3/4 - 6 7/8 21 1/4 - 21 5/8
SM 6 7/8 - 7 21 5/8 - 22
MD 7 1/8 - 7 1/4 22 1/2 - 22 7/8
LG 7 1/4 - 7 3/8 22 7/8 - 23 1/4
XL 7 1/2 - 7 5/8 23 5/8 - 24
2XL 7 3/4 - 7 7/8 24 3/8 - 24 3/4
3XL 8 - 8 1/8 25 1/4 - 25 5/8

Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

Click here to see the full HJC Helmets Size Chart
Product Style RevZilla Item # Manufacturer Product # Availability
Black / XS 975734 1602-601/ In Stock: Ships within 24 hours
Black / SM 975735 1602-602/ In Stock: Ships within 24 hours
Black / MD 975736 1602-603/ In Stock: Ships within 24 hours
Black / LG 975737 1602-604/ In Stock: Ships within 24 hours
Black / XL 975738 1602-605/ In Stock: Ships within 24 hours
Black / 2XL 975739 1602-606/ In Stock: Ships within 24 hours
Matte Black / XS 975740 1602-611/ In Stock: Ships within 24 hours
Matte Black / SM 975741 1602-612/ In Stock: Ships within 24 hours
Matte Black / MD 975742 1602-613/ In Stock: Ships within 24 hours
Matte Black / LG 975743 1602-614/ In Stock: Ships within 24 hours
Matte Black / XL 975744 1602-615/ In Stock: Ships within 24 hours
Matte Black / 2XL 975745 1602-616/ In Stock: Ships within 24 hours
White / XS 975722 1602-141/ In Stock: Ships within 24 hours
White / SM 975723 1602-142/ In Stock: Ships within 24 hours
White / MD 975724 1602-143/ In Stock: Ships within 24 hours
White / LG 975725 1602-144/ In Stock: Ships within 24 hours
White / XL 975726 1602-145/ In Stock: Ships within 24 hours
White / 2XL 975727 1602-146/ In Stock: Ships within 24 hours
Silver / XS 975728 1602-571/ Out of Stock
Silver / SM 975729 1602-572/ In Stock: Ships within 24 hours
Silver / MD 975730 1602-573/ In Stock: Ships within 24 hours
Silver / LG 975731 1602-574/ In Stock: Ships within 24 hours
Silver / XL 975732 1602-575/ In Stock: Ships within 24 hours
Silver / 2XL 975733 1602-576/ Out of Stock