Nikki(front hub):

Weight: 51g
Drillings: 16, 18, 20
Bearings: 2X 6802 Steel
Flange Diameter: 28mm
Center to Flange: 42mm
Axle: 15mm
Shell: Carbon reinforced AL Ring

Monica(rear hub):

Weight: 130g
Drilling: 24
Bearings: 4X 6803 Steel
Axle: 17mm
Center to DS: 20.5mm
Center to NDS: 36.5mm
Drive-Side Flange Diameter: 55.75mm
Non-Drive-Side Flange Diameter: 30mm
Drive-Side Flange: TITANIUM GRADE 5
Non-Drive-Side Flange: Carbon reinforced AL Ring
Drive Style: 3-Pawl TITANIUM GRADE 5 Interface
Weight limit of 100kg