Wolf Tooth 96 BCD Chainring - 32t 96 Asymmetric BCD 4-Bolt For Shimano Cranks Drop-Stop ST Requires 12-Speed HG+ Chain BLKWolf Tooth 96 BCD Chainring 32t 96 Asymmetric BCD 4 Bolt For Shimano Cranks Use 12 Speed Hyperglide+ Chain Black. This chainrings tooth profile was developed specifically for Shimanos XTR XT and SLX 12 speed Hyperglide+ chain. Compatible only with Hyperglide+ chains Engineered proprietary tooth profile maintains the quiet and smooth performance of the HG+ drivetrain with optimal chain retention Prevents premature ring and chain wear that can come from