Originally Posted by
jeirvine
Both 68 and 70 cups come in thick (rifled) and thin. Thin cups came with triples and pista BBs, but also with GS cranks. Any will work fine with an x3 spindle.
To put it another way, all Gran Sport and Record bottom brackets have thin cups, whether they are pre or post CPSC. Rifled steel cups are Nuovo Record. The Nuovo Record series did not contain either a track or a triple bottom bracket.