Polini BigBore Cylinder 154cc Aprilia RS Rotax 122/123 2T engine

Cylinder Bigbore Polini 154cc for Rotax 122 and 123 engines.

Manufactured in aluminium with a Piston with double ring of 60mm diameter, a specially treated cylinder head for this Cylinder and together with the pneumatic valve italkit ref. VER.01.125, you will maintain power at low RPM and gain power at high RPM.
 
Achieving a development of up to 11,000 RPM, a total of 37hp and 154cc.

It can be equipped with an electric and pneumatic exhaust valve! 

Polini recommends the following carburetion setting

 
The kit includes

• Cylinder
• Cylinder gaskets, exhaust, exhaust valve, exhaust, different gaskets for squish, cylinder head
• Cylinder head
• Complete Piston

Assembly instructions