Wolf Tooth 96 BCD Chainring - 34t 96 Asymmetric BCD 4-Bolt Drop-Stop For Shimano XTR M9000 M9020 Cranks BLKWolf Tooth 96 BCD Chainring 34t 96 Asymmetric BCD 4 Bolt Drop Stop For Shimano XTR M9000 and M9020 Cranks Black. Designed to fit 96 Asymmetric BCD XTR9000 9020 Cranksets. These rings feature the patent pending Drop Stop asymmetrical tooth design for the best in wear life mud clearance and chain retention. Only compatible with Shimano XTR 9000 or 9020 cranksets Features Wolf Tooths Drop Stop tooth design for maximum chain retention Drop Stop chainrings