I was having some trouble with my pusher rubbing against my DS crank arm after swapping to aliex chainrings. To fix the issue I ordered a passquest sram gxp crank washer. The passquest washers come in 1.6, 2.0, and 2.5mm thicknesses. I ordered the thinnest but any of them probably could work.
Here’s the sram spider+rings. I can’t easily measure the offset between the 3-bolt surface and teeth, but you can see it’s likely between 1.5-2.5mm.
Here’s the aliex senicx chainrings. There’s really not much of an offset between bolting surface and the teeth
Now here is the same chainring with the 1.6mm washer in place. In the background you can see the shiny patch where the pusher was rubbing against the crankarm
Already with the cranks in place the clearance is improved. In my use case I’d probably recommend the 2.0mm washer for people replacing a sram spider to direct mount 2x rings, but the 1.6mm is probably “enough”. I will go on a ride later today to see how it goes