The XTR FCM 960 cranksets have their own bolt pattern; although they also use a 4-bolt mounting, it is larger than the 104mm pattern found on other four-arm cranksets.
Only the original XTR chainrings designed for this crankset will fit.

Herstellerinformation: SHIMANO INC., 3-77 Oimatsu-cho, Sakai-ku, Sakai-shi, Osaka 590-8577, Japan, www.shimano.com | EU contact: Shimano Europe BV, High Tech Campus 92, 5656 AG Eindhoven, The Netherlands, www.shimano.com