AHR Offroad Helmet DOT Full Face Dirt Bike Black

Is AHR helmet DOT certified? Is DOT helmet good?

Yes, all our AHR helmets are DOT certified. As shown in the listing photos, each helmet has a small DOT sticker on the back. Some new riders may have heard of the DOT certification, but they may not understand why it is important, so we have provided an explanation below.
What is DOT?
DOT stands for the Department of Transportation. This organization set Federal Motor Vehicle Safety Standard (FMVSS) 218 for motorcycle helmets. All helmets sold for use by motorcyclists in the United States are required to meet this standard. Helmets that meet the requirements of FMVSS 218 are considered 'DOT certified' and are given a DOT sticker. However, the Department of Transportation doesn't test the helmets directly. Instead, the DOT holds the helmet manufacturers responsible for testing their own helmets and adjusting to meet the standards. What to do to meet FMVSS 218? A helmet needs to pass 3 tests to meet FMVSS 218. First is the impact attenuation test. It includes dropping the helmet on different impact anvil (flat anvil and cylindrical penetrator anvil) from a pre-set height. It simulates a crash scenario, and the impact is measured using scientific tools under two separate crash tests. Second is the penetration test. The helmet is fixed to a base, then a sharp striker is dropped on the outer surface of the helmet. The test striker must not penetrate the helmet, otherwise it will not pass the test. Third is the retention strap test. For this test, the helmet retention straps are placed under a load in tension. The test starts with a load of 50lbs for 30 seconds. The load is then increased to 300lbs for 120 seconds. The strap test ensures it can hold the helmet in place in case of an accidentWhat does a DOT sticker look like? The DOT sticker contains the following wording and information: manufacturer and/or brand, DOT, FMVSS No. 218, CERTIFIEDAlthough the DOT certification is often considered as the most basic standard, it does certify that the helmet meets important safety standards. We recommend being sure that any helmets you purchase have this certification.

Helmet: How do you measure head size before choosing a helmet?

A tailor's tape is the best tool for measuring your head for a helmet. Wrap the tape around the thickest part of your head. For most people, this will be right above your ears, approximately half an inch above your eyebrows. Measure your head circumference. Please refer head circumference table below to choosing a right size helmet.

AHR Helmet: Can l change the inner padding to adjust the size?

It depends on which kind of AHR helmet you have ordered. And the size of helmet and pad you receive should be the same.
1. If you have ordered AHR RUN-M flip up modular helmet, then the answer is yes, we currently have 3 sizes of replacement liner and pad for this type of helmet. You can order the same size liner & pad as a replacement in case the original liner & pad wear out, or you can order a larger liner and pad to make the helmet fit more snugly.
2. If you have ordered AHR H-VEN20 Off-road Race Helmet, the Medium, Large and X-Large size liner & pad are available. However, please note that each liner and pad only fit their same helmet size. Medium only fit medium helmets, large only fits the large helmets, and xl only fits the xl helmets.
3. If you have ordered AHR RUN-F Full face motorcycle helmet, if you want to replace the original liner & pad or order a larger liner & pad to make the helmet fit more snugly, you can click the link below and select the size you need. 4 sizes are available now: AHR RUN-F Motorcycle Helmet Liner & Cheek Pads Replacement
4. If you have ordered AHR H-VEN30 Full Face Motorcycle Helmet, 4 sizes of liner & pad are available. However, please note the small liner and pad only fits in the small or medium helmet, as do the medium liner and pad. The large size liner & pad only fits in the large or X-Large helmet, as do the xl liner & pad. Because the small and medium helmets are using the same shell size, while the Large and X-Large helmets are using another shell size.
5. If you ordered other types of AHR helmet, the liners & pads of those helmets are special accessories corresponding to the helmet model and cannot be replaced with other liners & pads. Like AHR RUN-C and AHR RUN-G, their inner pad is not removable.