The age old problem of putting a Puch Polini Kit on your Puch ZA50 moped is now solved. The 77 riser is a made of cast aluminum right here in Kalamazoo Michigan.Rumor has it that this little riser might raise your intake up high enough to avoid cutting your fins when installing a Puch Polini Four Petal. Also fits the bolt pattern of Tomos, and Peugeot mopeds in case you need to move your intake a smidgen.