Airoh Mathisse Modular Helmet Matte Bronze - Dual P/J Homologation 180° Flip-Up (MTH91)

The Airoh Mathisse in Matt Bronze color (code MTH91) is a flip-up modular helmet with dual P/J homologation: it can be ridden with the chin bar closed or raised. HRT (High Resistant Thermoplastic) shell in two external sizes, declared weight from 1,675 g (±50 g), 180° flip-up chin bar, retractable sun visor, and Pinlock® lens included. This listing includes sizes XS, L, XL, and XXL.

✓ Strengths

• Dual P/J homologation – legal both closed and open
• 180° flip-up chin bar – locks above the shell, not in front of the forehead
• HRT shell in two external sizes (1st XS-S-M / 2nd L-XL-XXL)
• Weight from 1,675 g (±50 g) – Airoh's declared data
• Retractable Sun Screen Visor – internal anti-UV and anti-scratch sun visor
• Pinlock® lens included in the package
• Stop Wind included – chin curtain
• Micrometric buckle
• Bluetooth intercom ready (intercom not included)
• Removable, washable, and hypoallergenic interior

Technical features

Airoh Mathisse size chart

Frequently Asked Questions

What does dual P/J homologation mean?
It means that the helmet is homologated in two configurations: P with the chin bar closed, like a full-face helmet, and J with the chin bar raised, like a jet helmet. You can therefore ride regularly even with the chin bar open, which is not allowed on a modular helmet with only P homologation.

How much does it weigh and what material is it made of?
The shell is made of HRT (High Resistant Thermoplastic) and is produced in two external sizes: the first covers XS, S, and M, the second L, XL, and XXL. The weight declared by Airoh starts from 1,675 grams with a tolerance of ±50 g.

How far does the chin bar open?
The chin bar rotates 180 degrees and locks completely above the shell; it does not remain halfway in front of the forehead. This allows you to use it as a jet in traffic and close it on the highway without removing it.

Does it have an internal sun visor?
Yes. It's the retractable Sun Screen Visor, with anti-UV protection and anti-scratch treatment: it lowers and raises with the external control without opening the main visor.

Is the Pinlock included?
Yes: Airoh states that the Pinlock® lens is included in the package. This lens eliminates visor fogging in cold and humid conditions and should be installed before winter use.

Can I install an intercom on it?
Yes, the helmet is Bluetooth ready: it has housings for speakers and a compartment for the battery. The intercom is sold separately and is not included.

Are the interiors removable and washable?
Yes: the helmet liner and cheek pads are removable, washable, and hypoallergenic. Airoh also lists replacement chin bars for the Mathisse in matt black, matt bronze, and glossy white finishes.

What size should I get?
Measure your head circumference with a flexible tape measure about one centimeter above your eyebrows and compare it with the table above. This listing includes sizes XS, L, XL, and XXL.

Why is it cheaper than the list price?
Because the first-generation Mathisse has been discontinued by Airoh, replaced in the range by the Mathisse II: what you see is end-of-series availability, at a reduced price compared to the list price. The helmet is new and original, in sealed packaging.

Who it's perfect for

The Mathisse is the modular helmet for those who alternate between city and travel: chin bar closed on the highway, raised at traffic lights and stops, without ever removing the helmet and without breaking the law thanks to its dual P/J homologation. The internal sun visor and included Pinlock make it ready for use in all seasons. The Matt Bronze finish is understated and pairs well with naked bikes, touring bikes, and maxiscooters.