The ZA70 is a bad dude case for building the craziest ZA50 powered puch you could imagine, but did you know that you can take some of that engine and bolt it onto your original casting ZA50??? Follow along as I install a Schimmel Engineering performance transmission cover on a my first moped, a 1978 Maxi Sport MKII! Compatible with injected, and non-injected engines. ZA70 and ZA70 performance covers are available very soon from https://www.doscycles.com/