Both cap and bolt combined weigh 5.1g .. Hope that helps?
You forgot to include the spacer which goes between the cap and the stem, to allow the steerer to go clear through the steerer clamp of the stem - this is now recommended by most carbon fork makers. A 3mm Chris King spacer is 2.5g
You forgot to include the spacer which goes between the cap and the stem, to allow the steerer to go clear through the steerer clamp of the stem - this is now recommended by most carbon fork makers. A 3mm Chris King spacer is 2.5g
Mine are 6.8g including 3mm of spacing :-)