classed as the A plus mainshaft it has an 18mm (11/16")nose bearing shaft size for the 1st motion shaft and uses a different mainshaft locking nut (DAM7485)at the double roller bearing end.Earlier shafts had a 14mm(9/16") size nose size.Use 22g48 mainshaft nut. £240-- retail but we are offering these on a sale price.
