Anyone know where to buy any? Want to add a couple of mm on my XT M8000 crank to improve 1×11 chainline.

Charlie the Bikemonger used to have them but out of stock and cant get any more.

All the other chainring spacers I’ve found are 10mm ID (for spacing an outer ring not an inner). I’ve already got some of those and they won’t work as there’s not enough coverage on the bolt head.

Can you just use 8mm washers? I’ve done that when I need something similar.

I think the issue is going to be that a washer would interfere with the chain – it’s an oval 30t chainring and the bolt heads are very close.

Ok – OneUP sell them

BOLT SPACER, 8mm ID – 4 PACK