Wolf Tooth Direct Mount Chainring - 32t SRAM 3-Bolt Direct Mount Drop-Stop ST Requires 12-Speed HG+ Chain BLKWolf Tooth Direct Mount Chainring 32t SRAM Direct Mount For SRAM 3 Bolt Boost Requires 12 Speed Hyperglide+ Chain Black. These Wolf Tooth Direct Mount Chainrings are designed to work with Cane Creek eeWings cranksets and SRAM direct mount cranksets with a 3 bolt interface. The tooth profile was developed specifically for Shimanos XTR XT and SLX 12 speed Hyperglide+ chain. Compatible with Shimano 12 speed Hyperglide+ chains on bikes with boost and non