I dont get these numbers. I'm old enough to have owned sports cars when centre lock wire wheels were standard and no way did they get tightened up this much.
Wire wheels use the Rudge Whitworth method of locking. The hollowed out inner surface of the wheel nut or spinner, actually elastically deforms the nose of the wire wheel centre. The enhances the locking effect over sheer tightening alone.
With the centrelock alloys on both the Trads and the early Aeros the wheel nut the nut doesn't elastically deform particularly and fits up against a taper recess in the wheel, so it needs a honking (technical term) amount of torque to tighten adequately.
Simon @ SiFab.co.uk
