Front Hub:

1)Model:KF-A291CB 

2)Weight:85g

3)Sealed Bearings:2

4)Spoke Holes:20 / 24 / 28

5)Gauge:14G/15G

6)Axle:9*108mm

7)Axle Material:AL7075

Rear Hub:

1)Model:KF-F292CB-S10

2)Weight:296g

3)Sealed Bearings:4 + 1NB

4)Spoke Holes:20 / 24 / 28

5)Gauge:14G/15G

6)Axle:10*140mm

7)Axle Material:CRMO

8)Cassette Body:AL7075

*1NB=1 Needle Bearing in Cassette Body 

Feature:

1)Carbon Fibre with Alloy Combination

2)Aero Spoke Hole Available

3)Bearing Smoothness can be adjusted by tighten or loosen side caps