These  hubs are sold under a variety of brand names–IRO, Harris Cyclery, Velocity, etc.  I order mine without any logos when I can.  They’re fine hubs at a good price with sealed cartridge bearings.  Rear hubs are available in 120, 126, 128, and 130mm spacing.   The silver rear hubs have no logos, all other hubs have an Origin8 logo on the hub barrel.  Made by Formula.  Fixed/fixed only, because fixed/freewheel only is less versatile.

Formula Front High Flange Track Hubs

Formula Rear Fixed/Fixed High Flange Track Hubs

120mm stock spacing, select one of the following options to respace to 126 or 130mm. 

If you’ve decided on hubs you can shop for rims here. Choose spokes here.