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Arai Signet-Q Comfort Liner

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$52.95 - $55.65
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Arai Signet-Q Comfort Liner

Replacement internal helmet liner for Arai Signet-Q Helmets.

See size chart for exact fitment information (not all liners fit all sizes of helmets).

Arai Signet-Q Comfort Liner Sizing

Helmet Size  Lining Code 12 mm 10 mm 7 mm 5 mm
XS I        Optional Standard Optional
SM II Optional Standard Optional
MD III Optional Standard Optional Optional
LG III Optional Optional Standard Optional
XL IV Optional Standard Optional
2XL V Optional Standard

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

How To Measure

Product Style RevZilla Item # Manufacturer Product # Availability
II/5MM 800409 5544 Out of Stock
II/7MM 800407 5543 Only 1 Left: Ships next business day
II/10MM 800406 5542 In Stock: Ships next business day
III/5MM 800408 5548 In Stock: Ships next business day
III/7MM 800412 5547 In Stock: Ships next business day
III/10MM 800411 5546 In Stock: Ships next business day
III/12MM 800410 5545 In Stock: Ships next business day
IV/5MM 800416 5552 In Stock: Ships next business day
IV/7MM 800415 5551 Out of Stock
IV/10MM 800414 5550 Out of Stock
V/5MM 800420 5556 Out of Stock
V/7MM 800419 5555 Only 1 Left: Ships next business day
V/10MM 800418 5554 Out of Stock


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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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Arai Signet-Q Comfort Liner 4.4 5 7 7
Made my head hurt worse, Revzilla will not refund or exchange even though they recommended the product. I spoke with someone on the phone about my helmet telling them about the pain I was having after riding for an hour or more. The "geek" recommended I buy a larger 12mm lining for my helmet, so I did. This liner is 2mm thicker than the 10mm that came with my Arai helmet (Signet-Q medium). The helmet hurt much more with the 12mm liner in. Revzilla says I cannot exchange it or return it because I wore it. How else would I know if it fit? I have purchased numerous items off of Revzilla and I am very mad about this purchase. The liner is not cheap and the helmet is very very expensive. As of now I have spent about $700 between the two and I have a helmet that causes horrible pain after about an hour of riding. My advice, call Arai before you do or buy anything. They are much more knowledgeable than the people at Revzilla. I really like Revzilla so it bothers me to have to leave this review but right now I am not a happy customer. March 22, 2016
If the Arai Signet Q is slightly too big... get this insert My other Arai helmets have all been Mediums, but the Signet Q was just a tiny bit loose. It did not ride up at speed or move around, just did not fit like the RX-Q and other models. I know that the head shape is more round for this model so that might have been part of it. The 12mm insert seems to be the perfect update. Fits snug, but not tight. I am a big fan of Arai and my next helmet will be another Arai. March 23, 2015
Provided a better fit than standard liner. One of the reasons for buying Arai is the ability to get a good and comfortable fit. Moving to the thicker liner allowed for a better fit while still having the Signet-Q long shape. July 14, 2014
I had no idea When I bought my Arai Signet-Q, it had a great, snug fit and didn't smell weird at all. After about 17,000 miles of riding, I decided it could a freshening, so I bought a replacement liner. It feels like a snug, new lid now, and doesn't smell weird anymore. Yes, I'm aware that they're washable, but that never brought back the springiness that it originally offered. Treat yourself, but a new liner and give your skull the soft embrace it deserves. Or don't. I'm not the boss of you. May 5, 2014
great product! Fits my Arai signet Q, makes and feels a big difference! Glad i made this purchase! Very satisfied! February 5, 2013
Easy way to slightly snug up the fit of your Signet-Q helmet. I wanted to make my Signet-Q (XL) helmet fit a bit more snugly, so I ordered this thicker comfort liner. Shipping was amazingly fast, and I got the new liner installed in seconds. Definitely helps tighten up the fit, not a huge difference but worth doing. August 6, 2012
tightened up my helmet perfectly I have a 56.5cm head and a SMALL Signet-Q and had trouble with the breath deflector ending up on or under my nose sometimes at higher speeds and winds. After a call and a chat with Revzilla, I ordered the 10mm liner. This tightened the fit and lifted the helmet just a bit more on my head. Now, the overall fit is much better, and the deflector at high speeds rides just over my nose. It's also still very comfortable for long touring rides. March 6, 2012
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