Arai CT-Z Helmet Diamond White / LG [Blemished - Very Good]
  • Arai CT-Z Helmet Diamond White / LG [Blemished - Very Good] - Diamond White
  • Arai CT-Z Helmet Diamond White / LG [Blemished - Very Good] - Diamond White
  • Arai CT-Z Helmet Diamond White / LG [Blemished - Very Good] - Diamond White

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Shape: Round Oval

Weight: 3.45 lbs

What's this?

Note: This is a new item that has light cosmetic damage which may include, but is not limited to scuffs, scratches, stains, chips or dings. The damage affects the aesthetics but not the function of the item. The original packaging may or may not be present. There is a small chip in the finish on the back left side of the shell.

Arai CT-Z Helmet

Arai introduced the CT-Z to their open-face helmet line after digesting years of real world rider feedback from their XC-RAM helmet. The XC-RAM was an incredibly successful helmet that provided exceptional value and convenience to riders. The Arai CT-Z uses the XC-RAM as a foundation and adds another level of convenience. Arai’s main objective for the CT-Z helmet is to provide riders with an open-face helmet that improved their experience riding into the sun without limiting ventilation, aerodynamics, or face shield functionality. Arai doesn’t change for the sake of change. They change to improve. The CT-Z is a nice improvement to Arai's helmet line.


  • Removable and replaceable interior liners
  • Low profile cheekpad design
  • Upper vent system borrowed from the Arai Corsair V helmet
  • Adjustable peak helps reduce sun glare and is designed to provide minimal lift at highway speeds
  • Thinner face shield pods increase aerodynamics 
  • Brow vents channel air direct to the temples
  • Snell M2015

4.7 / 5
Bang For The Buck
4 / 5
Protection & Durability
4.8 / 5
4.6 / 5
4.7 / 5
4.6 / 5
Air Flow
4.6 / 5
Noise Level

Arai Helmet Sizing

Size Head (cm)
2XS 51 - 52
XS 53 - 54
SM 55 - 56
MD 57 - 58
LG 59 - 60
XL 61 - 62
2XL 63 - 64
3XL 65 - 66

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

How To Measure

H Head Wrap a cloth measuring tape around your head just above your eyebrows and ears. Pull the tape comfortably snug, read the length, repeat for good measure and use the largest measurement.
Product Style RevZilla Item # Manufacturer Product # Availability
Diamond White / LG 1248653 Only 1 Left: Ships within 24 hours


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Browse 20 questions Browse 20 questions and 90 answers
Why did you choose this?
RevZilla Store
suppose to br the best--have used them for over 40 yrs.
philip i on Aug 5, 2017
Research and reviews
Samuel T P on Jul 28, 2017
suppose to br the best--have used them for over 40 yrs.
philip i on Aug 5, 2017
wanted to try an open face helmet for sport touring. I am a road racer and only use Arai helmets and watched your video and that sold it.. Touring around on my new 2017 Ducati SS...Thanks MIKE DUBE ccs-lrrs expert #74 AHRMA and USCRA vintage# 74D
michael w. d on Aug 5, 2017
Research and reviews
Samuel T P on Jul 28, 2017
On sons wish list.
J E on Jul 18, 2017
Just wanted to try it. Very nice hat. Extremely comfy...too comfy? My friends have persuaded me to go back to my Shoei RF1200..might be best.
john c on Jun 26, 2017
Wife has a round head
A C on Jun 16, 2017
More coverage than almost all other 3/4 helmets, combined with typical Arai quality, efficient ventilation and plushness of interior. I have other helmets, but was looking for a great touring helmet for the 9 months of the year that it's not typically cold/wet.
John P on May 2, 2017
I have a previous generation of the CT-Z and find these helmets to be outstanding touring helmets. I am pleased with the improvements and believe it will be an excellent helmet for my purposes.
David S on May 2, 2017
I picked this because I have had Arai helmets before and I just wanted to the best for my head. I'm a little more relaxed these days and just putt around on a Piaggio MP3 scooter. I wanted to try an open-faced helmet and Arai had the answer for me.
Richard T on Apr 19, 2017
Great price
joseph r on Mar 17, 2017
Been shopping for a new open face helmet. Revzilla videos helped me to identify the best choice and this is it.
William M on Nov 6, 2016
Looks very good!
J O on Aug 22, 2016
Time to give up the half helmet and didn't need another full face for the hot summer
Ryan A on Aug 17, 2016
Awesome protective qualities, great ventilation, great looks! Gotta protect one of the most important God given assests, my head!
Michael M on Jul 24, 2016
Excellent help in choosing the right fit.
Thomas M on Jul 5, 2016
Recommended by a friend
Lanny M on Jun 18, 2016
i have an arai full face - very comfy and well built. got this to have a better 3/4+ version that I can put my audio stuff on for bike communication.
Christopher B on May 27, 2016
SIDNEY F G on May 25, 2016
Looks like just what I've been looking for. The video helped A LOT!
A C on Apr 17, 2016
I think that Arai make the best helmet. This helmet works well for touring and around town.
Jeff J on Mar 24, 2016
I have always loved Arai helmets and needed the best new one as my current Arai helmet is old.
George K on Mar 23, 2016
Review on Revzilla
Dennis L on Mar 18, 2016
Been wanting cooler helmit for summer.
WILLIAM S on Feb 17, 2016
Great reviews and SNELL/DOT Certified. I am riding again after 20 plus years away from it and a good friend also recommended this LID!!!
Mark S S on Feb 6, 2016
Ronald R on Jan 19, 2016
Product quality and "custom" fit.
Tom S on Jan 18, 2016
i was in need of a new helmet and i have been wearing Arai for 40 plus years. They not only fit me well but are arguably the best helmet made. I hope this CTZ fits as well as it looks and gives me a little better ventilation than what I have been using. I will try to give a full review after I get a chance to wear it .
Ken B on Nov 29, 2015
Wanted the best protection in an open-faced summer helmet.
Seth G. on Nov 15, 2015
I have XD4 and i really like the Arai product. I am expecting noting but the best. And now i can talk to my buddys at the stops with out yelling through my helmet.
MJGSMOTO on Aug 30, 2015
I have always owned Arai helmets and see no good reason to change now. Like the idea of a face shield and visor,hope I like it when it gets to me.
G W on Aug 4, 2015
I have a Schuberth Full Face C3 and wanted something less restrictive or "closed in" feeling. This is the most comfortable helmet I have ever owned by far. It's all I use now.
Bryan F on Jul 12, 2015
Recommended by a friend
Rodney C on Jun 7, 2015
It's not a helmet's Arai easy choice
robertas m on May 28, 2015
A friend recommend this helmet to me
Ray C on Mar 29, 2015
Not quite what I desired but ok. I like my joe rocket carbon pro better for what I use it for.
Louis D on Jan 11, 2015
I need a well-ventilated open face helmet to enjoy summer rides in the Southeastern USA. I was not willing to give up Snell certification to get that. This is the only helmet I trust that gives me all those things.
Tomislav M on Jan 10, 2015
would like to see how it fits...everyone seems to like it...would like to try and see how it fits.
Michael S on May 6, 2014
Owned several Arai helmets inthe past, they fit my head perfectly. This looks like a great summer/ cruising helmet for my HD SG or BMW K 1600gtl
Bradley J L on Mar 22, 2014
It is very comfortable, light weight, feels like a ball cap on your head, cuts the wind with no wind drag.
Douglas M on Jan 25, 2014
Ventilation and protection and fit.
Doug C on Nov 20, 2013
Need an open face for those really hot days. No S&H, tax and the Revzilla cash back made it a great value!
Marc S on Sep 28, 2013
I chose the Arai CTZ because the XC Ram was no longer available. I ordered it because it is Snell rated (to get my hubby off my back to get a full fac or mod helmet) and because my last helmut was an Arai SZ Ram III which I was very satisfied with.
Agnee B on Sep 25, 2013
Best protection in a 3/4 helmet and best value for the money.
Stanley K on Aug 24, 2013
Upgrade from my current Arai Classic/m. Little sticker shock, but if I ever need it, I want the best head protection possible. (They call a helmet a "brain bucket" for a reason!)
Steven L on Aug 24, 2013
wanted to try an open face helmet for sport touring. I am a road racer and only use Arai helmets and watched your video and that sold it.. Touring around on my new 2017 Ducati SS...Thanks MIKE DUBE ccs-lrrs expert #74 AHRMA and USCRA vintage# 74D
michael w. d on Aug 5, 2017
On sons wish list.
J E on Jul 18, 2017
Did anyone try to use it without the peak? What parts are needed to use it with visor but without the peak ?
A shopper on Sep 30, 2015
BEST ANSWER: Just take visor off. Works fine, looks great. No special parts or tools
I have an Arai Quantum 2 that fits me well, I am looking for an open face helmet since I now have a bike with a windshield, For the price, this helmet seems a little skimpy on technology:

I am disappointed this helmet does not have a pinlock visor, Does it fog?

I am also disappointed it does not have a drop down tinted visor.

Does anyone know from experience will it work with an Interphone f5 intercomm?

Bruce C on Jul 12, 2014
BEST ANSWER: I am extremely happy with the Arai CT-Z helmet. I am not sure what a pinlok visor is but this visor stays in the position you put it in and it does lock when it is down completely. There is no movement of this visor. I have never had this visor fog up on me.

We have scalarider G4 communicators and they work with this helmet without any issues.

I hope this helps answer Bruce's question.

Kaye M. Hau
can the CTZ be used without the face shield?
A shopper on Nov 4, 2013
BEST ANSWER: You probably could remove the face shield but It does not sound like a good idea. Assuming that you have goggles or some other eye protection, the helmet is pretty big (i.e. lots of padding) so I would not think this would be an ideal helmet to wear without a face shield. Go with a helmet that does not come with a face shield like a Bell Custom.
Currently wear a Signet q, love it but want an open face version. Is there a good choice?
Julie G on Mar 24, 2016
The video shows him pulling out the insides, but he does not make mention that it will accommodate a microphone or ear speaker. Can you use a Bluetooth system with this helmet?
A shopper on Aug 19, 2013
BEST ANSWER: Yes, you can. I have the Sena SMH10 (with boom mike) mounted on my CT-Z. The speakers fit in a recessed area in the removable cheek pads. Unfortunately, the shape of the face protection has the bulge where the mount goes so it hangs out more than I would like -- but it works. I have shaped the boom mike so that it is tucked inside the face shield when lowered.
From another unanswered question on the Scorpio 900 page, I would like the answer too so here is the question again, I hope if get answered this time:

I've been an Arai wearer for years. I have a long oval, i.e., Signet, Profile shaped head. I tried a Quantum years ago and it "worked", but it didn't fit me like the others. I have raced with them...and still instruct at the track wearing them. However, I am now also enjoying time on a Goldwing and have been looking at the CT-Z. Your vides and information online suggest it's not going to fit me.... I'm continuing my search for an open face that will fit, that has the protection I'm accustomed to (I've thrown away a few Arai's after they've done their job) along with the features a touring helmet should provide (quiet, internal sun visor, etc.) Can you help me cut to the chase? Are there pads that would allow the CT-Z to fit me? Are there no open face that will work? Should I look into a modular? (I've looked hard at the Scorpion EXO-900.... it has the features, yet your site says it'll not fit my head...) HELP?
Bill F on Mar 4, 2014
BEST ANSWER: I also wear a Signet Q. In a full face. I bought the CT Z and it fits me fine. I use the CT Z for my sport tour. Good luck.
I found this helmet while looking for a new women's helmet for my wife--in other words, the Revzilla search engine showed me this helmet as a "women's helmet." But I don't see anything about this being a women's helmet or suitable for women (most reviews are from guys). Does this helmet have any features that are considered "women's features?"
Daniel M on Jun 29, 2017
BEST ANSWER: I don't think a helmet is made for a man or woman particularly. I t really just depends on the fit. Most Arai helmets fit a medium oval head the best. Just need to try on a variety of helmets and see which seem to fit your head. Both myself and my wife have this helmet and both of us love them. A little snug on the cheeks at first but that wears in. The only difference between hers and mine is that I have removed my visor and she likes hers on. Great helmet for any man or woman. Good luck finding one that works for your wife.
with the shield up, the vents are blocked. can the helmet be worn with the shield removed? or is there a shorter shield available, say nose level rather than chin depth?
A shopper on Mar 24, 2016
BEST ANSWER: With the shield up, the vents are not blocked. I'm pretty sure the helmet could be worn without the shield because the mounting system looks very similar to my arai xd-4. I do not know if a shorter shield is avalaible.

I bought this helmet for my wife and we ride two up. She had never wore a helmet before and felt like she couldn't breath in a full face helmet. She loves this helmet. It provides great face protection and she can breath normally and that is sitting behind me with much less wind flow. I also purchased the darkest tinted shield for her and myself. This is great for long rides. Sunglasses under a helmet are possible but not comfortable.
I have a CT-Z and when I ride with the Face Shield up at highway speeds it will drop down and I have tightened the helmet side screws almost as tight as I dare and the shield will continue to drop down, I ride a Harley Davidson Street Glide ?
Gerald F on Aug 5, 2016
BEST ANSWER: I ride a Honda Goldwing and just got back from a 3000 mile trip with my CT-Z helmet. I did not have any problem with the face shield dropping at highway speed. I did remove the sun shield before my trip. I did experience more wind noise with the face shield down all the way. When I opened the face shield a bit the noise went away. I will put the sun shield back on to see if that helps the wind noise when the face shield is closed all the way.
Does the LG CT-Z use the same shell as the XL CT-Z? I measure 60cm which should be a LG but trying on at the International MC Show in Long Beach the LG seemed too tight and not as comfortable. Need advise on which to get.

I would hate to spend the $$, get a LG and find it still putting too much forehead pressure after 3 months. My old ARAI 3/4 was with three snaps on forehead and fit great, wish they still made it!
Bill F on Feb 27, 2014
BEST ANSWER: The only trouble that I have with this helmet is that it is a little tight on my cheeks and sense I ware classes I have to put them on after I put the helmet on, somewhat a pain in the a**. Other that these two items I like the hamlet after it is on. Would have to think hard about buying one again though......

From a positioning standpoint the CT-Z, in our opinion, is the most technically advanced, best venting, and most protective open face helmet we've seen anybody do so far. Obviously, it stands on the shoulders of all the Arai technology that we know goes into their full face helmets and really produces a phenomenal, top quality product.

I mean you're looking at north of $500 for an open face helmet. Pause and digest that. That's exactly what I said.

Now, if we really think about it, though, there's a lot here. Before I walk into all of the guts, let's talk about fitment. Typically, we see Arai helmets to be intermediate oval in a lot of cases. Their open face helmets tend to be slightly rounder, so I'm going to call it a neutral oval. If you have that long, pronounced, signet-q or profile type head shape this helmet's not going to work for you.

Also, from a weight standpoint it is Snell 2010. It's D.O.T. It's using the C.L.C. construction which is the same super protective composite outer shell that we see in the Vector 2. It came in three pounds seven ounces for a medium, so relatively light as well - still under three and a half pounds. Nice touch there from Arai.

I have my silver graphic in front of me, or silver colorway. Let's walk into the nuances here. Remember, the CT-Z is going to be the replacement for the XC Ram which is the more beefed up technical open face helmet. A step backwards from the CT-Z would be really the Arai XC which is a little bit more basic in its construction.

The first thing you're going to see that we haven't seen on an open face from Arai yet is going to be the peak. It's a refined version of the peak that we see on the XD-4 helmet. So, it's going to be aerodynamic. It's not going to buffer.

I mean this helmet is really designed for more of a touring riding style. Anybody can wear it. A scooter rider could wear it. I hate to pigeonhole a helmet. Really, they think that most helmets, most riders are going to be riding it in that position.

You see the way everything flows, the way the vents are set up, the way the peak is set up. It's going to be aerodynamic. Also, even with this rear spoiler to create a little bit of downforce it's not necessarily a helmet you're going to be rocking in that position.

You have your peak. Your peak is fully removable. It also has some range of motion in it as well. This is really done to reduce glare, you know, in place of a pair of sunglasses or a sun visor. It's meant to break away.

These are plastic bolts that are meant to shear off. Remember, any time you hang something on a helmet it could be considered a sail and outside of wind. If you were to go down you want this to break away and shear off as soon as possible. You don't want it to catch and create any undue stress on your neck.

Also, there are side pods here that have been streamlined versus the last version of the XC Ram. So, everything's a little bit tighter. It's a little bit more aerodynamic. And, if you took the peak off these pods would just go right into the helmet and you'd have a nice clean line here on the side as well.

Also, I'm going to flip it upside down and you're going to see that we have a black tape on the inside of this visor. That's anti-glare. It's the same type of an idea that you'd get from eye black like when you're playing sports. You put that there and you're not going to get any reflectivity down.

Notice we're using a high quality Arai shield. It comes up. It seats really nicely underneath that peak. And, there's a slight locking mechanism here on the side. You also have a good solid seal around.

One of the things that I really like about this helmet... We might as well move on to ventilation. We've talked about shell. We've talked about some of the things that are glaring at you in the face. A lot of ventilation. Remember, you're open face. You always have the magic of being able to put your face shield up.

A lot of people love that. The face shield down you have these brow vents. Arai does brow vents versus doing chimney vents up here because this is an impact prone area, and when you have to drill those vents in it weakens the shell. What they do is they create these brow vents as part of the shield. Again, it's the R and D that goes into the cost.

The nice part is you have these big scoops that channel the air. They don't just shoot you in the forehead. They actually channel it, and it comes out back here right along your temple.

So, you have that temporal artery that runs down along the back side of your ear. Especially from some of you guys that are doing long rides in hotter climates, if you can cool the blood flow you can cool yourself. It's dramatic how much that makes  a difference. You get that air flow onto the artery that's cooling an area that's typically a really hot spot on your head as opposed to just shooting yourself in the forehead. Keep that in mind.

When we move up to the main ventilation scheme you're going to see the same horseshoe venting that we see in the Corsair V. Again, one of the tech things that they said we're going to steal because it's just super effective, but you're going to see some nuance changes to it.

We have our big cowls. Each one has a 10 millimeter vent hole below it, a 10 millimeter hole in the front, in the middle, open and close, 10 millimeter hole in the back. But, then we also have an open and closeable venturi vent that lives under here. What you're going to get is that high speed air flow going over the helmet creates a vacuum back here. Two intakes, and then we have an exhaust in the back here. That exhaust is going to extract warm moist air from your head and pull it out of the back of the helmet at speed.

Now, thinking along the lines of venturi, when you get this vacuum back here it creates what we call the Z coefficient which wants to pull your helmet up and off of your head. By creating downforce with this it's a fixed spoiler. It's not the fully movable spoiler that we see on the Corsair V, but you don't need it because your riding position isn't as aggressive with this helmet. Again, a nice feature here that's going to give you better stability at speed.

One of the cool things, and you're probably already wondering when I'm going to talk about it, is Anthony I've seen this vent before. I know this Arai vent. Why is it backwards on your sample?

Wrong. It's not backwards as an accident. It's a backwards on purpose. It is the same vent that we see on something like a Corsair V.

It's turned backwards because Arai knows that when you wear a helmet like this in most cases an upright position, in a lot of cases on a touring bike you're going to have a windscreen. A windscreen creates air flow. It comes up. It's going to swirl. It's going to create some turbulence around the head.

If this was faced forward in the open position it would create just a little bit too much noise. It's actually optimized to work with the type of air flow that's going to come over a helmet knowing that you're not in the tuck behind a tiny windscreen bubble. You're actually probably sitting upright working within the confines of a larger windscreen on your bike.

So, again, that's all wind tunnel testing. That's the juice that you get by investing in the Arai R and D.

A couple of other winglets down here, these are functional. These winglets are functional. They are also going to be for stability. They're extractors. You're getting additional airflow that comes out of the helmet, but they're also positioned and machined and shaped in a way that's not going to add to any turbulence. It's actually going to help the helmet be stable at speed.

Notice we have our nice ridge here, our energy absorbing ridge that Arai does. You know, it creates that circle on top of your head and it gives that ripple that's going to almost bounce some of the energy back. You want all of the energy in a crash situation to be contained within the shell of the helmet and the E.P.S. It's an energy management system at the end of the day.

Moving into the guts of the CT-Z, and again getting into some of the creature comforts and protective schemes, we are playing off the D.N.A. of the XC Ram. But, again, there's a lot going on here. We still have our vented neck roll that's going to have air comes down and now vents through the bottom. We're going to have a solidly all encompassing area that's going to interface with your head and neck.

Non-removable neck roll here in the back, but we do have a changed cheek pad style. When I pull one of these cheek pads out you're going to notice it's using the new facial contour system, or F.C.S., from Arai which is the second generation. The top layer of this cheek pad has a 5 millimeter removable panel. So, without having to buy a new set of cheek pads you can actually make them fit a little bit bigger which is a nice touch.

We saw that, I think, for the first time on the RX-Q. But, the new F.C.S. uses different densities of foam. It has a more aggressive contour to it. And, it actually creates a better seal and better comfort along the jawline and down creating kind of that seamless effect against the side of your face.

I'm going to actually stick it on my head up here. You can see right in here the way that this would touch my face, the way that it would come out, it's actually a much more ergonomic feel, and it's going to be a bit quieter as well. Remember, everything's removable.

The interior of the Arai, you know it's super premium. It's called Dry-Cool. It's washable. You can run it under water. It's anti-microbial. It's wicking. It's meant to keep you cool. I might as well gut this bad boy while I'm standing here.

Here's my other cheek pad system. Notice there's no snaps. The way it goes in is with tension, and it locks in from the front. Again, Arai prefers to do it that way. I like the fact less snaps. Snaps break over time, and they can wear out.

As I pull it open you're going to see I have my... Avoiding my neck roll here, and I'm moving up to my comfort liner. It's a 3D comfort liner with cutouts for all of the areas that are going to have a vent near them. Comfort liner's 3D, and notice that there are these pockets here, pockets along the outside.

You might ask yourself why there's a pocket covering that pad. It's another area that allows you to tune the helmet. It's going to be intermediate to neutral oval. If you have a really round head you also on either side can remove up to  5 millimeters of padding on the side.

The reason why they cover it is so that just for normal wear and tear it's not going to automatically start removing that pad. They want to kind of protect the seam, and if you want to remove it you can.

Just notice the way that that's done - high quality, Dry-Cool, big openings along the top, and you have four connection points with snaps. These two you'll never feel, and these two are spread out far enough that they're going to be away from these areas in the front of your head.

Let's take a shot of the interior of the helmet really quickly as well. You're going to see seven holes, seven 10 millimeter holes in a reverse horseshoe fashion that are really going to... That's the interior and exterior extraction points for the air flow coming through the Arai CT-Z, which actually does come in a bunch of other colorways as well.

Remember, if you're an XC Ram user, this is a nice step forward in both function, venting, styling. There's a lot you can do here.

A lot of different colors available as well. This is silver. There's the matte black. It's meant to be muted. It's a bit more of a toned down rider that we typically see go for the CT-Z or an XC Ram.