XTR M900 crank/rings advice

[damian]

I'm trying to get my head around the idiosyncrasies of these, I have no issues with the outer and middle mounts put the inners seem to be almost completely flat requiring significant spacers/washers to mount them.

Are there specific XTR M900 inner mounting bolts or washers?

 

[Corduroyboy]

Yes, you need 4mm spacers and slightly longer inner chainring bolts.

 

[damian]

Yes, you need 4mm spacers and slightly longer inner chainring bolts.

Excellent, I thought I was going crazy or this swine flu was clouding my judgement.

Now, where would I find both of these? :?