Polini For Race 4 Exhaust for the Minarell Horizontal cooling fan

Polini For Race 4 Exhaust for the Minarell Horizontal cooling fanPolini went back the drawing boards and engineered a totally new For race 4. Like the previous For race 3 this exhaust still delivers plenty of low down torque all while still delivering the revolutions you are looking for. A perfect combination for the Polini Corsa cylinder. Fits most Minarelli Horizontal engines including: 2002 2011 Yamaha Zuma Aprilia SR 50 carb version

Katana 50cc AC (after 1999)

They don't get much better that this

thinner and as a result lighter than cast types

Pepe 50cc AC (before 2003) - Minarelli horiz

sacrificing torque down low

with domed crown and 0

no plastic inserts

With these springs you can increase your launch speed and keep your engine in its powerband

The transfer port layout has been adopted from the high-performing 70cc SportPro

Polini X5 Minicross kickstart gear

With the 70cc Streetrace grey cast iron cylinder series

A completely new design with new transfer ports cater for 2 hp more