Originally Posted by
Nessism
Many fork crowns are solid steel. Not hollow. Cinelli bottom bracket shells were thick and heavy. Straight gauge tubes were thick and heavy. Small details all add up.
More than 20g difference between a Cinelli (solid, 158g) crown and Henry James (hollow, but also investment-cast, 126g):

I was a bit surprised that the Cinelli investment cast BB shell (160g) was only 12g heavier than a Nikko bulge-formed shell (148g):