Cylinder Airsal Alu Sport 50cc Derbi Variant Start

The Airsal Alu-Sport cylinder is available for standard scooter models. The cylinder liner is coated with chrome and Nikasil. Being made of aluminium, it has the advantage of better thermal performance compared to an iron cylinder. In terms of power, it is similar to the Polini Sport 50cc. It is not necessary to install it together with a larger carburettor. We recommend a larger main jet.

ATTENTION! The kit does not include the cylinder head, you must use the original one! It is installed on Variant models with a 12mm piston pin (Start a pedales and Start V), NOT Start III

Original diameter: 39.9mm