2:1 Ensuring similar tension of drive and non-drive side for stiffer riding feedback. Spoke is unlikely to loosen in 2:1 system too.
Carbon Spoke 2.7 Grams/265mm. Nearly 50% lighter and 25% stiffer than the best of steel spokes. Individually repairable.
Mega Structure No external hole design. The continuous structure make the rim stronger and stiffer. Rim tape is not needed and thus saves another 50 grams in use.