Run SRAM cranks in your 386EVO frame
Shims are based on industry standard 386EVO bottom bracket shells
386EVO is a 22mm-wider version of PressFit 30, using the same cups, straight 46mm bore and 30mm spindle diameter but in an 86.5mm-wide shell 
Easy to install and machined for exact fit
Shims press fit directly into 386EVO bearings (6806 30mm ID bearings)
You will need the 386EVO bearings already installed into the 386EVO shell to start this conversion
Removal is the opposite of installation
You may need to gently tap them out from the opposite side