I wonder if they are coming out with a replacment for their 35cc single. most MFGs just use cylinders they have already when doing stuff like this. Roto has a 35cc single so two of these would make a 70. So did they make a larger bore to make up the extra 15cc?

never mind I see they make a 85cc opposed twin. lol i was hoping for a 42.5 cc single to compete with the OS 40FS