Compatibility - Shimano Bleed Spacer Y8FF19000. Shimano part no.: Y8FF19000. 1 x Shimano Bleeding Spacer for XTR / XT / SLX / Saint / ZEE Brake Caliper. - Shimano XTR BR-M9120. - Shimano Zee BR-M640. Shimano Bleeding Spacer for XTR/XT/SLX/SAINT/ZEE Brake Caliper.