Hub Material Alloy
Spoke Holes 28H/32H/36H
Gauge 14G/13G
P.C.D 45mm
Flange Spacing 57mm
O.L.D 120/130/135mm
Axle Diam 3/8″
Axle Material  S45C
Color Sliver Red Yellow Blue Black Purple
B17R-DT  for Rolling System Ball Bewl
B20R-DT/QR  for Quick Release Type
B20R-DT/QS  for Quick Release Type and
                          Rolling System Sealed Bearings