Ok, the way these work. You already have bb30 bearings or a pressfit pf30 bb installed. PAIR (left + right).
Shimano to SRAM GXP Bottom Bracket adaptor, Alloy BB 24mm to 22mm (1 piece)
Gusset IS-05 MTB Bottom Bracket Adaptor Plate.. Brand New unused
FSA Bottom Bracket Adapter Reducer (EE085) - PF30 to 24mm bb30 to shimano crank
Eccentric Bottom Bracket Conversion Kit for 68mm 73mm Frames, Aluminum Alloy for Bike BB Adaptor with for CNC for, Lightweight for Frame Adapter, Black
For Bike Bottom Bracket Conversion Kit, Adjustable 68-73mm Eccentric BB Adaptor for Cycling, For CNC Aluminum Alloy & Steel, Lightweight Black
FSA BB-9920 Platinum ISIS Splined Bottom Bracket - BSA Thread - 68 x 113mm