Piaggio Diesis 100 Polini Cup: Inside Mamat’s Garage

TL;DR: Mathieu Cotinaut’s (aka Mamat) Piaggio Diesis 100cc is a full-blown Polini Cup race machine refined over more than 10 years, built entirely around a Stage6 R/T package — and Maxiscoot takes you straight into his garage to see everything up close.

🏁 Garage Beauties: Mamat’s Piaggio Diesis, the Beast of the Polini Cup

Know Mamat? If you follow the French scooter racing scene, the name rings a bell. Mathieu Cotinaut — product developer at Streetbuzz Distribution and seasoned racer — has already made headlines on the Polini Cup circuits. We covered his journey twice: his pole position and double win in 2026, and then his back-to-back victory at Latina. Today, Maxiscoot throws open the Garage Beauties doors so Mamat can walk us through his extraordinary machine.

🎥 The Video: Step Inside Mamat’s Garage

Before we get into the details, feast your eyes on the full episode:

🛵 A Piaggio Diesis 100cc Built to Win

On the surface, a Piaggio Diesis is an iconic early-2000s scooter. But underneath Mamat’s bodywork, it’s an entirely different story. Over 10 years of development — tuning sessions, geometry tests, broken parts and outright wins — have turned this chassis into a fearsome race weapon.

• ➜ Full 100cc Stage6 R/T FLR engine build
• ➜ Chassis geometry dialled in after years of on-track testing
• ➜ Stage6 Racing components hand-picked for maximum performance
• ➜ Suspension setup tailored to the specific demands of the Polini Cup
• ➜ Developed in parallel with his role as product developer at Streetbuzz Distribution

🔧 A 100% Stage6 R/T Engine Build: When Passion Becomes Engineering

Mamat didn’t just bolt on off-the-shelf parts. Every Stage6 R/T component was selected, tested and adapted. At 100cc, engine tuning demands precision: carburettion, ignition, cylinder head, exhaust — everything is engineered to squeeze every last rev out of the power band while staying within Polini Cup regulations.

As a product developer at Streetbuzz Distribution, Mamat has privileged access to the latest technical updates across the Stage6 range. The result? A scooter that isn’t just fast, but genuinely coherent — every setting talking to the next.

📐 Chassis Geometry: Mamat’s Secret Weapon

What truly sets Mamat’s Piaggio Diesis apart from the competition is the obsessive attention paid to chassis geometry. Rake angle, trail, ride height — each parameter has been refined over years, circuit by circuit. The goal: predictable, aggressive handling capable of absorbing late braking and powering out of the tight corners typical of Polini Cup tracks.

🏆 One Rider, One Story, Many Victories

Mamat is more than a technician — he’s a racer at heart. His string of Polini Cup podiums — including a double victory at Latina and a pole position already on his 2026 record — proves that man and machine are a formidable combination. And this season is far from over…

Want to follow Mamat more closely? Check out his official Stage6 rider profile here: Mamat54 – Official Stage6 Rider.

❓ FAQ

What is the Polini Cup?

The Polini Cup is a hugely popular scooter racing championship across Europe, especially in France and Italy. It pits small-displacement scooters (typically 100cc) prepared to strict regulations against each other, making it a technical yet accessible playground for enthusiasts.

What is the Stage6 R/T FLR?

The Stage6 R/T FLR is a premium competition engine parts range from Stage6, designed specifically for racing. FLR refers to the optimised reed valve technology built for high-revving applications — perfect for 100cc competition builds like Mamat’s.

Who is Mamat (Mathieu Cotinaut)?

Mathieu Cotinaut, known as Mamat, is a scooter racer and product developer at Streetbuzz Distribution. He is best known for his results in the Polini Cup, with multiple race wins and pole positions to his name.

Where can I find Stage6 parts to build my scooter?

All Stage6 parts for your scooter build are available at Maxiscoot, one of Europe’s largest scooter and two-wheel specialists.

How do I watch all Garage Beauties episodes?

All Garage Beauties episodes and every other Maxiscoot video are available on the official Maxiscoot YouTube channel. Subscribe so you never miss an episode!