· CNC machined in our BC manufacturing facility.· Outer middle & aluminum inner rings manufactured from 7075-T6 one of the strongest alloys available today.· Outer rings are made from 4mm thick material & middle rings from 5mm thick material for unsurpassed durability.· Rings feature our patented S.H.I.F.T. technology featuring hard wearing stainless steel S.H.I.F.T. chips for dual action up-shifts.· These rings are incredibly stiff & significantly lighter than previous Race Face triple ring setups.