Racing Cylinder POLINI BIG EVOLUTION 70 cc

for MINARELLI horizontal 2T LC
aluminium
6 ports

47,6mm
stroke 39,3mm
pin 12mm
with cylinder head

TUNING RACE – for professionals

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.