O'Neal Sierra Helmet, Flat Black LG

I had an issue with my first order because the size I picked didn’t fit me correctly, so I had to exchange it. Once I got the right size, though, I was really happy with it. The helmet looks great in person and the flat white finish gives it a really clean look. It feels solid, the interior padding is comfortable, and once properly fitted it sits securely without feeling awkward. Visibility is good and it doesn’t feel excessively heavy on my head. Definitely make sure you check the sizing carefully before ordering, but after getting the correct size, I have no complaints. It looks awesome and feels like a quality helmet.

In my opinion, this helmet hit a home run. I've only had it for a few weeks but the quality seems to far surpass the value. I like the silver/gray color scheme a lot and I love the sun visor. I do wish it had more vents since I live in the heat but it's fine. There is some wind noise but I think that's the nature of the beast. Sometimes there are sacrifices for such a low price but I just don't see it in this particular item. Update#1 As an addition, I am a tweener at 23" - between MD and LG - so I went with the LG. I got it, I wore it around the house and it felt snug; however, after many rides later, it does seem to have broken in to an ever so slightly, loose fit. It's possible a MD would have been a better choice. Update#2 I recently noticed that the screws to the visor were very loose. Get some blue loctite on those before you lose them. Update#3 After some time, the LG does cause unbearable crown pressure. It's mostly loose left to right. Update#4 I bought a MED and confirmed the outer shell and inner padding of both LG and MED are identical in size. They share the same shell and the difference lies in the EPS core. Unfortunately, the MED mostly caused forehead pressure and wasn't the solution to the LG. This is unfortunate dilemma of a tweener.

First motocross style helmet. My previous helmet years ago was a street bike full face. I sent the first one back because the padding made it way too tight. Ordered an XL and it is very snug also. I’m confident that my head would be protected in a crash. Difficult to get eye glasses on after putting on the helmet. The sunshade thing on top catches quite a bit of air when riding on the highway. I looked into removing it but it is part of the hinge for the shield. The inner tinted sun shield touches my big nose when I drop it down and isn’t dark enough to really help much. The venting seems to work well. Enough air moving to keep the shield from fogging but not enough to dry out my old eyes. The padding seals well around the neck. It has been very comfortable for the autumn riding I’ve been doing. Haven’t used it on any hot days yet. Overall I like this helmet. Good value for the money. Order big if you are between two sizes.

Overall I like the helmet, especially for the price. My head measurement put me right in the middle of large range going by the size chart. It fits perfectly around my head, but the space around my cheeks is very cramped. I think it will break in with use. I don’t like where the d rings are positioned. They are up way too high and in combination with the tight fit it makes the d rings press into my jaw a bit. It’s also a pain to get fastened. I love the sun visor. I wear prescription glasses and they fit in the helmet very well. There’s a space in between pads where the arms of the glasses slide right in. The sun visor is able to deploy over my glasses which is outstanding. The face shield is decent. I like that it clicks closed and seals well. Love the chin curtain. Wind noise is decent. The peak was a little loose out of the box and it rattled at high speed but tightening that down fixed the issue. It looks like there’s not much room for Cardo speakers but I think I can make it work. I can put the helmet on with Bluetooth earbuds on and they stay in place. After it breaks in it should be much better. Overall decent.

Love it. Yes it is louder that my shark, but it is lighter with way more viewing. My only complaint would be the shaded drop down doesn’t quite come down low enough. It fits right on the head and takes a little wiggle to get the ears situated. I can still wear my AirPods however.

Really nice helmet at price point! It’s comfortable, stylish with many features found in more expensive models

Great Helmet!

I like this helmet, but let's get down to the negatives first. My main gripes are about the D-rings. The ring strap fits through the comfort strap in two places, one up near the base of the helmet where it enters, and one closer to the rings where it exits. The problem is that the ring strap is too short. When you put the helmet on it slides back up into the inside of comfort strap where you cannot grab it. To fix this I had to cut away at the comfort strap (see pictures). The second issue is with the rings themselves. They are a lot smaller than other helmets. This makes securing the D-rings very difficult, and impossible if you're wearing gloves. So basically every time you put this helmet on you are fighting with the rings. Aside from that, the helmet is noticably louder than a standard helmet. This is to be expected as it's a dual sport helmet, but the acoustics seem to magnify all sound. Wearing this helmet makes things louder than if I wasn't wearing a helmet at all. For any distance riding ear plugs are a requirement. For sizing, a lot of comments mentioned going a size up because the helmet runs small. I followed the measurement suggestions and ordered to size up from there. This seems to fit me perfectly. The helmet is very well ventilated. I also think it looks very stylish. The drop down sun visor is a nice addition for the value. Quality seems pretty fair. For what I paid I actually like this helmet, but it's not without its faults.

Es un buen casco

Muy mala calidad, llego con el protector de la nariz doblado. No es lo que parece en las fotos. Devuelto.

El caso es tal cual como sale en la fotos, buena calidad para el precio. No le doy 5 estrellas ya que compre el caso tama#o XXL. pero su dimensión es XL. Me lo quedo espero afloje mucho mas..

Muy confortable, se ajusta muy bien, gran vision, el protector anti baho funcio estupendamente, muy bonito , con una relacion calidad precio estupenda. Estoy muy contento con la compra, totalmente recomendable

Eccezionale. Comodissimo, pratico e funzionale. La visiera scura è una chicca ormai indispensabile, un po’ dura da far scorrere ma funziona bene. Le prese d’aria anteriori sono chiudibili sia dall’interno che dall’esterno, fa ben pensare per la stagione fredda. Un po’ voluminoso, in velocità la pinna parasole fa molta vela e ti obbliga a chinare il capo, ma del resto nasce per l’enduro. Il look cattivo che possiede é il top