Wolf Tooth Direct Mount Chainring - 42t SRAM Direct Mount Drop-Stop B For SRAM 8-Bolt Cranksets 6mm Offset Raw SilverThese direct mount chainrings will replace your existing chainring and spider or replace the direct mount chainring for SRAM AXS cranksets and other cranks that use the 8 bolt mounting. Most SRAM cranksets have traditionally used a 3 bolt mounting, but the 8 bolt mounting has always been used on the Quarq power meter cranks. Now some non power meter cranks like SRAM AXS use the 8 bolt mounting. All SRAM Direct Mount DUB road cranksets use the 8 bolt