Airoh Mathisse MTH91 Modular P/J Matt Bronze – Sun Visor and Pinlock, ECE 22.05

The Airoh Mathisse (code MTH91) in matte bronze is a modular helmet with P/J ECE 22.05 dual homologation: it can be legally ridden both closed, like a full-face helmet, and with the chin guard raised, like an open-face helmet. The chin guard rotates 180° and locks over the shell. HRT thermoplastic shell in two sizes, internal sun visor, Pinlock lens included, Stop Wind, micrometric closure, and Bluetooth intercom ready. Stated weight from 1,675 g ± 50 g. Available in sizes XS, L, XL, and XXL.

✓ Strengths

• P/J dual homologation – legal both closed and open
• 180° flip-up chin guard – locks over the shell, does not stay in front of the forehead
• Pinlock lens included in the box – no fogged visor in cold and rain
• Retractable internal sun visor
• Bluetooth intercom ready (intercom not included)
• HRT shell in two sizes – XS in the first, L, XL, and XXL in the second
• Spare parts still in the Airoh catalog – visors, colored chin guards, Stop Wind, liners

Technical features

Size guide

The table shows the complete model range according to the manufacturer. For this color, we hold sizes XS, L, XL, and XXL. Measure your head circumference with a tailor's tape measure just above the eyebrows, at the widest point; if in doubt between two sizes, choose the larger one.

Who is it perfect for?

It is the modular helmet for those who alternate city and travel: closed on the ring road and highway, open at traffic lights, gas stations, and stops, without having to take it off and without being outside the law thanks to the P/J dual homologation. The internal sun visor and the Pinlock lens already in the box make it ready for all seasons from day one. Matte bronze is a sober shade that looks good on naked bikes, touring bikes, and maxiscooters. And unlike many end-of-series items, spare parts are still available here, including the chin guard in the same color.

Frequently asked questions

What does P/J dual homologation mean?
It means the helmet is approved in two configurations: P with the chin guard closed, like a full-face helmet, and J with the chin guard raised, like an open-face helmet. You can therefore ride legally even when open, which is not permitted on a P-only modular helmet. ECE 22.05 homologation.

Why is it so cheap?
Because the first-generation Mathisse has been removed from the Airoh catalog, replaced in the range by the Mathisse II, and these are the last pieces in stock: it is an end-of-series price. The helmet is still new, boxed, and covered by the manufacturer's warranty, and spare parts can still be found.

Is the Pinlock included?
Yes: the Pinlock lens is in the box and the visor is already prepared to mount it. It is the internal lens that prevents fogging in cold and humidity: apply it once before your first winter rides.

Can I mount an intercom on it?
Yes, the helmet is Bluetooth-Ready, meaning it is prepared to host a communication system. The intercom is not included and is purchased separately. On a modular helmet, it is best to choose a kit with a microphone that does not hinder the rotation of the chin guard.

Are spare parts still available?
Yes, and that is the strong point of this end-of-series item: Airoh still keeps spare parts for the first-generation Mathisse in the catalog, including clear, smoke, and mirrored visors, chin guards in matte black, matte bronze, and glossy white, Stop Wind, liners, and air vents.

Which size should I choose and how much does it weigh?
Measure your head circumference and compare it with the table: we have XS, L, XL, and XXL; we do not have S and M in this color. The XS uses the first shell, L, XL, and XXL use the second, larger one. The manufacturer states a weight from 1,675 g, with a tolerance of 50 g: this is the minimum value of the range; sizes in the second shell weigh more. When shipping, including packaging, it reaches approximately 2.13 kg.