Hub axles front and rear for the Miche Primato Syntesi hubs and the older RG2 hubs. They are 12mm diameter and rear is steel the front aluminium alloy. The rear DS steel end cap is included as are the bearing preload adjuster. The front DS alloy end cap is there too. The freehub body spacer (between freehub and hub shell) is included along with the spacer that goes between the two rear main bearings.
This axle kit will fit all models of Primato road hub with a freehub body and a 12mm diameter axle.