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HJC RPHA 10 Speed Machine Lorenzo Helmet
  • HJC RPHA 10 Speed Machine Lorenzo Helmet - Black/Silver
  • HJC RPHA 10 Speed Machine Lorenzo Helmet - Black/Silver
  • HJC RPHA 10 Speed Machine Lorenzo Helmet - Black/Silver

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Video Reviews (3)

HJC RPHA 10 Speed Machine Lorenzo Helmet Videos

HJC RPHA 10 Speed Machine Jorge Lorenzo Helmet

Designed for superior fit and comfort using advanced CAD technology, the HJC RPHA10 helmet is constructed from Advanced P.I.M. (Premium Integrated Matrix) a composite of Carbon fiber, Fiberglass epoxy, Aramid epoxy, and Organic fibers resulting in a remarkably strong and extremely lightweight helmet. 


  • “ACS” Advanced Channeling Ventilation system: Full front to back airflow flushes heat and humidity up and out
  • Max Air-flow top vent: Variable air flow is adjusted by glove-friendly dials on each intake vent
  • Optically-superior Anti-scratch Pinlock face shield (HJ-20): Anti-Scratch coating providing 95% U.V. protection. Innovative center shield locking mechanism for a balanced, ultra secure seal
  • RapidFire II shield replacement system: Simple and secure shield ratchet system provides ultra-quick, tool-less removal and installation
  • Optically-superior Pinlock prepared 2D flat-racing shield with included clear Pinlock insert
  • 2-Stage shield closure system with one-touch center locking system makes for an extremely tight and secure seal
  • SilverCoolPlus interior: Removable / Washable interior. Premium soft interior with Ginkgo Extract, moisture-wicking and odor free with advanced silver anti-bacterial fabric
  • 3 shell sizes
  • 5 year limited Warranty
  • Meets or exceeds SNELL & D.O.T. standards

HJC RPHA/FG-Jet/FG-17 Helmet Sizing:

Size Head (cm)
XS 54-55
SM 55-56
MD 57-58
LG 58-59
XL 60-61
2XL 62-63
3XL 64-65

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/Silver / XS 975710 1596-951/ Only 3 Left: Ships within 24 hours
Black/Silver / SM 975711 1596-952/ In Stock: Ships within 24 hours
Black/Silver / MD 975712 1596-953/ In Stock: Ships within 24 hours
Black/Silver / LG 975713 1596-954/ In Stock: Ships within 24 hours
Black/Silver / XL 975714 1596-955/ In Stock: Ships within 24 hours
Black/Silver / 2XL 975715 1596-956/ In Stock: Ships within 24 hours


Orders $39.99 and over qualify for our fast free shipping offer. Click Here for FREE Shipping Terms and Conditions.

Please see our International Orders page for orders shipping outside the US.

We show real-time availability on this product page when you select the size/color item you want.  Most items will ship the same business day an order is placed,however if an item requires additional processing time a message will be shown indicating such.

See our full Shipping Policy for further details.


If your order arrives and it is not right, we will we'll fix it, NO NONSENSE, we promise.

Doesn't fit or just not happy with it? You can return any new, unused and unaltered item within 30 business days of delivery receipt of your item. We will issue a full refund to your original payment method.

See our full Return Policy for all of the pertinent details.

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HJC RPHA 10 Speed Machine Lorenzo Helmet 4.8 5 226 226
Este casco esta increible El casco es muy ligero, ergonómico, diseño impresionante, colores parecidos a mi moto resol, se ajusta perfecto a mi cabeza, se los recomiendo ampliamente February 10, 2016
Perfect helmet for the price Seeing as I bought this helmet on sale I was already pretty happy. It has composite shell vs the hard plastic of most helmets for that price, which was the selling point to me. Overall it is a great helmet, there are but a few minor things to get used to, like the visor lock being right over the chin vent, top vents are opened by little rollers that take time to get used to. My biggest gripe with the helmet was the pinlock visor being just slightly too tight and the manual that comes with is it less than helpful. However, after looking up some suggestions on the internet I took the visor out and deepened the grooves it has to make it fit better. Now I think this is the best helmet ever! It DOES NOT fog up! I had fogging issues all the time due to low temp in the mornings but the pinlock fixed that. Now if only my sunglasses would stop fogging up on colder days that would be even better. Definitely a great helmet, for the price that I got it for it was an absolute steal. Even for the full price it would have been an absolutely justifiable purchase. February 9, 2016
My Second hjc helmet and its good My second helmet I bought My first was hjc is16 Was great but medium quality one Hjc Rpha 10 plus are Quiet, very light and comfortable, I highly recommend that product! :) January 18, 2016
Loud for my head shape I want to like the helmet, but apparently with my head shape it is extremely loud. Wind noise just channels right up to the bottom of my ears. Even with ear plugs it is almost unbearable. If I "shrug" my shoulders it goes dead quite or if I wear my beleclauva with earplugs. Apart from that it is a nice helmet. It is a little snug against my cheeks but I don't dare to order thinner pads as I fear the noise would be worse. (If that's possible) I've ridden a couple thousand miles with it with temps ranging from 95 down to about 28 and bright sun and pouring rain. (Midwest) I keeps my head cool when needed and warm with all vents closed and curtain installed. The pinlock insert works great! Double check head shape and size! Other than that it's a great helmet! January 12, 2016
Good job HJC. RPHA 10 is a really nice sport riding helmet beyond my expectation. It feels light and fits snug. Graphics & finishing is good quality. I've had Arai, Nolan, AGV, Suomy and a Schubert S1 before . This helmet is a real bargain for the money I paid. My only concern is , it is not so quiet as most people review (Especially when you open the top vents.) December 14, 2015
This helmet exceeded my expecations! I recently purchased an HJC RPHA Evoke 10 helmet, to use when racing my Dirt Oval Kart. I purchased this helmet because of the Pin Lock feature that came with it. I had recently researched how to stop a helmet from fogging up and the best suggestion, or proven method, was to use a Pin Lock. I had tried every trick in the book to stop fogging up to this point so figured what the heck. During my first race using this helmet I was truly AMAZED, NO FOG! Not only could I see, but the helmet was so comfortable and the amount of airflow made it so much easier to concentrate on racing. This helmet was exactly what I had hoped for and truly exceeded my expectations. December 7, 2015
Quality is amazing for the price I really like this product and its quality, especially considering the price. It is also very quiet to my surprise. November 30, 2015
Excellent Value at Sale prices I've put about 1,000 miles on my bike since getting the RPHA-10, in 100 degree temps down to 40 degree temps, and think I have a fairly good feel now for its strengths and weaknesses. Pros: Safety, I have no concerns about protection in the event I need this helmet to do what it was designed to do. Quality, everything on the helmet feels quality, works well, etc... Airflow while riding, there's a comfortable amount of air flowing to keep you from arriving drenched in sweat. At winter temps, there's almost too much air, even with the vents all closed up, but a headsock/balaclava takes care of that problem. Cons: Fit against cheeks is super snug, this is probably a safety thing but other helmets I've worn are much more comfortable around your cheeks. I like snug, but this is maybe 1-2 mm too snug. Airflow while standing, I have to put the visor up when sitting at stop lights, etc... otherwise, my visor fogs up instantly and combined with previous con, things get pretty claustrophobic fast. There is no difference with the plastic guard in or out. Minor con, the Vent dials. The product info touts the easy to use dials but they are pretty small which makes them hard to find on the fly especially with gloves on. I had to make note of which direction to roll the dial with the helmet off, and then make a mental note of their location, before using them became more intuitive. November 30, 2015
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