Scooter and Motorcycle Thermal Units

let's talk about cylinder kits for scooters and motorcycles – one of the most popular upgrades (or spare parts) in the world of two-wheelers, especially for those looking for more power , engine restoration or reliability over time .

🔥 What is a Thermal Group?

The combustion chamber is the heart of the engine: it's the set of components where combustion takes place. Replacing it means renewing or enhancing the engine.

📦 Main components:

• Cylinder

• Head (sometimes included)

• Piston

• Elastic bands

• Pin + seeger

• Gaskets

🏍️ Types of Thermal Units

🔹 1. Original / OEM

• Same factory specifications

• Ideal for repairs or routine maintenance

🔹 2. Base / Sports

• Same displacement, but greater performance

• Air or liquid cooling

• Perfect for urban use + small upgrades

🔹 3. Racing / High Performance

• Larger displacements (e.g. from 50cc → 70cc / 80cc / 90cc)

• Better materials (aluminum, nicasil)

• More compression, more revs, more torque

• They require a larger carburetor, sports muffler, and an appropriate variator.

⚙️ Cylinder Materials