Racing Exhaust POLINI Evolution 10

for MINARELLI horizontal 70ccm, LC
steel
color silencer: black
TUNING ROAD – for everyday use
For race use only. Not admitted in the area of the German StVZO! Product description
POLINI has joined MALOSSI, Big Bore, 2Fast and Stage6R/T in the racing cylinder class above 68 cc. The Evolution Big Series from POLINI lets you choose between a 84 cc racing cylinder (39.9 stroke) or 94 cc (only with compatible 44 mm long stoke shaft). Hit the outer limits with 2 mm more bore in comparison to MALOSSI Big Bore, a phat 55 mm.
Aluminum/55 mm bore/ 84 cc/94 cc
The 84 cc version can be used in combination with a 39.9 stroke crankcase. Want more
This means milling the casing, no way around it. Additionally, a long stroke shaft with 44 mm and 85/90 connecting rod is a must. You can expect performance output well over 20 hp.