Derbi Senda Polini Reed Valve aprilia Athena 45mm

Athena 45mm

Aggressively notched piston and cylinder skirt

46mm Polini head for Motobecane av7 and av10 engines

The engine is clean and appears it was barely ridden

Derbi Senda Polini Reed Valve aprilia Athena 45mmHigh quality Polini 4 petal carbon fiber reed valve. Comes with Polini Blue reeds that are 0. 30mm thick. Also comes with one gasket as well as an optional reed stuffer. This does not fit Puch Gilardoni cylinders. It is also not designed to work with Minarelli AM6 engines. This is a true Derbi reed valve. Bolt pattern is 60mm x 39mm Fits so many models APRILIA : RS 50 dal 2006 > (DERBI D50B) RS4 50 (DERBI D50B) RX SX 50 dal 2006 > (DERBI D50B) BULTACO