80cc aluminium cylinder kit from Polini for scooters with 50cc GY6 and Kymco 4-stroke engines. The cylinder has a 50mm bore and achieves an output of 6.2bhp at 7,800RPM according to manufacturer´s claims.
Please note: For Sym scooters this kit is only suitable for the GY6 139QMB engine version and not the XS1P139QMB, AV05W or AW05W engine or the Sym Symply 2 models
Please note: For Sym scooters this kit is only suitable for the GY6 139QMB engine version and not the XS1P139QMB, AV05W or AW05W engine or the Sym Symply 2 models
