Should have read the reply more
closely.
Standard gearing ie 15 & 42 = 102 + rivet link.
Drop a tooth on the Fr. as many of us do, then its 101 + rivet link.
ie 14 + standard 42 RR = 101 + rivet link.
PS. Renthal sproks., and Tsubaki chain are the bus. Good quality gear. Much quitrer and no corrosion or stretch seen so far at all.