Its good to hear someone has a Athena sachs running. There are two here in Tempe with the 80cc kits that run great on the stand but not on the ground....upside down pistons??? Oh well, now you can play with the fast bikes cause I hear the sachs can rip. Small bore, I have a 11 or 12 that I accidently got for the v1, you can have it if you want.