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What Shape Are Arai Helmets? (A Reference Guide)

Finding a motorcycle helmet with the right shape can be a tricky thing to do. This can be particularly difficult with cheaper helmets.

Now it is no secret that Arai helmets are expensive. However, Arai offers helmets of different shapes and sizes in an effort to meet the demands of riders and allow them to find the perfect fit. (Which is just one of the reasons why expensive motorcycle helmets are worth it.)

Arai motorcycle helmets come in three different shapes: intermediate oval, long oval, and round oval. The majority of Arai helmets are intermediate oval, and a smaller percentage of Arai helmets are long oval and round oval. Arai helmets also come in various sizes, from XS to 3XL.

A long oval head shape means the length of the head is longer than the width. A round oval means that the length of the head and the width are somewhat similar. The intermediate oval is the most common head shape, which is somewhere between the long oval and the round oval.

Below you can find a quick reference list going over more than 70 different Arai helmets that can be found on the market today.

Arai Full Face Helmets 

The shape of Arai Corsair-X, Regent-X, and Defiant-X helmets is intermediate oval. The shape of Arai Quantum-X helmets is round oval, and the shape of Arai Signet-X helmets is long oval.

Full face Arai helmets vary in their weight. Generally, Arai Corsair X helmets weigh about 3.55 lbs, Defiant X about 3.51lbs, Regent X about 3.41lbs, Quantum X about 3.52 lbs, and Signet X about 3.53 lbs.

  • The shape of Arai Corsair X helmets is an intermediate oval.
    • The Arai Corsair X Nakagami 3 Helmet is an intermediate oval.
    • The Arai Corsair X Tatsuki Helmet is an intermediate oval.
    • The Arai Corsair X RSW Trico Helmet is an intermediate oval.
    • The Arai Corsair X Hayden Laguna Helmet is an intermediate oval.
    • The Arai Corsair X Haga GP Helmet is an intermediate oval.
    • The Arai Corsair X Vinales 4 Helmet is an intermediate oval.
    • The Arai Corsair X Nicky 6 Helmet is an intermediate oval.
    • The Arai Corsair X KR-2 Helmet is an intermediate oval.
    • The Arai Corsair X Nakano Helmet is an intermediate oval.
    • The Arai Corsair X Haslam Helmet is an intermediate oval.
    • The Arai Corsair X Mamola Edge Helmet is an intermediate oval.
    • The Arai Corsair X Spencer 40 Helmet is an intermediate oval.
    • The Arai Corsair X IOM 2022 Helmet is an intermediate oval.
    • The Arai Corsair X Nakasuga 2 Helmet is an intermediate oval.
    • The Arai Corsair X Nakagami Helmet is an intermediate oval.
    • The Arai Corsair X Takumi Helmet is an intermediate oval.
    • The Arai Corsair X Scope Helmet is an intermediate oval.
    • The Arai Corsair X Nicky 7 Helmet is an intermediate oval.
    • The Arai Corsair X CBR Helmet is an intermediate oval.
    • The Arai Corsair X Kiyonari Torico Helmet is an intermediate oval.
    • The Arai Corsair X Rea 2019 Helmet is an intermediate oval.
    • The Arai Corsair X Van Der Mark Helmet is an intermediate oval.
    • The Arai Corsair X IOM 2019 is an intermediate oval.
    • The Arai Corsair X RC Helmet is an intermediate oval.
    • The Arai Corsair X Pedrosa Samurai 2 Helmet is an intermediate oval.
    • The Arai Corsair X Kiyonari Helmet is an intermediate oval.
    • The Arai Corsair X IOM 2020 is an intermediate oval.
    • The Arai Corsair X Bracket Helmet is an intermediate oval.
  • The shape of Arai Defiant-X helmets is an intermediate oval.
    • The Arai Defiant-X Dragon Helmet is an intermediate oval.
    • The Arai Defiant-X Carr Helmet is an intermediate oval.
    • The Arai Defiant-X HA Helmet is an intermediate oval.
    • The Arai Defiant-X Outline Helmet is an intermediate oval.
    • The Arai Defiant-X Shelby Helmet is an intermediate oval.
    • The Arai Defiant-X Number Helmet is an intermediate oval.
    • The Arai Defiant-X Diablo Helmet is an intermediate oval.
  • The shape of Arai Regent-X helmets is an intermediate oval.
    • The Arai Regent-X Sensation Helmet is an intermediate oval.
    • The Arai Regent-X Bend Helmet is an intermediate oval. 
    • The Arai Regent-X Patch Helmet is an intermediate oval.
    • The Arai Regent-X Jungle 2 Helmet is an intermediate oval.
  • The shape of Arai Quantum-X helmets is a round oval. 
    • The Arai Quantum-X Xen Frost Helmet is round oval.
    • The Arai Quantum-X Hi-Viz Helmet is round oval.
    • The Arai Quantum-X Spine Helmet is round oval.
    • The Arai Quantum-X Steel Helmet is round oval.
    • The Arai Quantum-X Oriental Helmet is round oval.
    • The Arai Quantum-X Drone Helmet is round oval.
  • The shape of Arai Signet-X helmet is a long oval.
    • The Arai Signet-X Impulse Helmet is long oval.
    • The Arai Signet-X Hi-Viz Helmet is long oval.
    • The Arai Signet-X Striker Helmet is long oval.
    • The Arai Signet-X Oriental Helmet is long oval.
    • The Arai Signet-X Dyno Helmet is long oval.
    • The Arai Signet-X Shockwave Helmet is long oval.

Open Face and 3/4 Arai Helmets

Open face and 3/4 Arai helmets usually have an intermediate oval shape.

  • The shape of Arai Classic-V helmets is an intermediate oval.
    • The Arai Classic-V Groovy Helmet is an intermediate oval.
  • The the shape of Arai Ram-X helmet is an intermediate oval.

Dual Sport Arai Helmets

Arai XD-4 dual sport helmets have an intermediate oval shape and weigh about 3.66 lbs.

  • The shape of Arai XD 4 helmets is an intermediate oval.
    • The Arai XD-4 Africa Twin Helmet is an intermediate oval.
    • The Arai XD-4 Catch Helmet is an intermediate oval.
    • The Arai XD-4 Hi-Viz Neon Helmet is an intermediate oval.
    • The Arai XD-4 Vision Helmet is an intermediate oval.
    • The Arai XD-4 Depart Helmet is an intermediate oval.
    • The Arai XD-4 Cover Helmet is an intermediate oval.

Dirt Bike Arai Helmets

Arai VX Pro 4 dirt bike helmets have an intermediate oval shape and weigh about 3.34 lbs.

  • The shape of Arai VX Pro 4 helmets is an intermediate oval. 
    • The Arai VX Pro 4 Pure Helmet is an intermediate oval. 
    • The Arai VX Pro 4 Combat Helmet is an intermediate oval. 
    • The Arai VX Pro 4 Machine Helmet is an intermediate oval. 
    • The Arai VX Pro 4 Sprint Helmet is an intermediate oval. 
    • The Arai VX Pro 4 Day Helmet is an intermediate oval.