Airoh Helmets Size Chart
Airoh Sizing Chart: Find the Perfect Fit for Your Helmet
Italian-built and racing-proven, Airoh has spent decades engineering helmets that balance featherlight shells with serious impact protection. Whether you're carving a mountain pass on a Airoh street bike helmet, hitting motocross whoops in an Aviator, or pulling dual-duty on an adventure ride, getting the right size is the first step to performance and safety. Use the chart below to dial in your fit before you order from BTO Sports.
Airoh helmets are sized by head circumference in centimeters, so grab a soft tape measure and follow the steps below. If you fall between two sizes, Airoh recommends going up — a helmet that's too tight will create pressure points on a long ride.
How to Measure for an Airoh Helmet
Head circumference: Wrap a soft tape measure around the widest part of your head, about a half inch above your eyebrows in front and around the fullest point at the back, just above your ears.
Measure multiple times: Take two or three passes to make sure you're not pulling the tape too tight or too loose.
Round up, not down: If your measurement falls between two sizes, step up to the larger shell. Airoh's removable cheek pads let you fine-tune the interior fit.
Check for hot spots: A properly sized helmet should feel snug and even across your forehead, temples, and crown — with no single pressure point.
Airoh Helmets Sizing Chart
Every Airoh helmet, from the Aviator 3 and Commander 2 to the Wraaap, Matryx, Strycker, and Connor, uses the same unisex adult head-circumference sizing. Match your measurement (in centimeters) to the size below.
| Size | Head Circumference (cm) |
|---|---|
| XS | 53 – 54 |
| S | 55 – 56 |
| M | 57 – 58 |
| L | 59 – 60 |
| XL | 61 – 62 |
| 2XL | 63 – 64 |
Airoh Dirt Bike Helmets
Airoh's motocross lineup — Aviator 3, Strycker, Wraaap, and Twist — is built for aggressive off-road riding with wide eyeports for goggles and heavy venting to move air at speed. Shop the full range of Airoh dirt bike helmets once you've dialed in your size.
Airoh Street Bike Helmets
Street-focused models like the Matryx, Spark 2, and J 110 prioritize aerodynamics and integrated sun visors. Check out Airoh street bike helmets for sport and urban fitments.
Airoh Adventure & Dual Sport Helmets
The Commander 2 and other dual-sport Airoh lids pair a peak with a drop-down sun visor for road-to-trail riding. Browse the Airoh adventure and dual sport helmets collection to find your build.
Why Proper Airoh Helmet Sizing Matters
A helmet is only as protective as its fit. An Airoh helmet that's too loose can shift on impact and fail to distribute crash forces the way the shell was engineered to. One that's too tight creates pressure points, cuts circulation, and turns a long dirt bike or touring day into a headache. Dialing in the right shell size — then fine-tuning with Airoh's removable liners and cheek pads — is the fastest way to turn a good helmet into a great one. It's also why every rider should revisit their sizing hub when upgrading gear.
If you're also building out the rest of your kit, pair your new Airoh lid with the right protective gear and goggles from our dirt bike gear lineup.
Get Expert Help with Airoh Sizing at BTO Sports
Not sure which Airoh shell is right for your head shape, or debating between two sizes? Our team rides what we sell and can walk you through fit, model differences, and which Airoh helmet makes sense for your discipline. Reach out before you order — we'd rather help you nail the size the first time than process an exchange.
Phone: 1-805-777-7601 / 1-888-613-3393 (Toll-Free)
Email: cs@btosports.com