84 NH125 question about over-sized piston kit

[robcg2]

Bought an over-sized piston & ring set. Everythings ready to go, cylinder is bored out 1 over. My question is, The rings are identical... one side is at a 90 degree to the out-side surface... the other side is slightley beveled thinner to the inside... Which side is up? Thanks for any help you can give! Rob

[Old School]

If I remember correctly, the beveled ring is the top ring and the bevel goes up. It is to keep the ring from breaking if/when a ridge forms at the top of the cylinder.