bicycle parts--HUB
1.material: steel
2. spoke hole: 20H.36H.28H W/bearing for derailleur
3.Axle: 3/8 S45C Ucp.BK

Bicycle parts--hub

1.SY-JW-B 232
2.Shell: Steel
3.Spoke Holes: 12G13G14G×20H.28H.36H
4.Axle: 3/8 S45C Ucp.BK
5.O.L.D: (F) 100 (R)126.130.135
6.P.C.D.: (F) 45 (R) 45
7.Rolling System: Seated bearing