SET OFFRONTEND AXLE CAPSFOR A TRIUMPH AND BSA 650 1971 AND 1972. THESE ARE CNC EXTRUDED ALUMINUM INSTEAD OF CAST. WE STULL RECOMMEND CROSS PATTERN INCREMENTAL TIGHTENING. IF YOU NOTICED THAT YOUR AXLE CAPS ARE CRACKED OR JUST BROKEN WHICH HAPPENS WHEN THEY ARE OVER TIGHTENED OUT OF SEQUENCE THESE ARE THE REPLACEMENTS.