Chainring Wolf Tooth SRAM Boost 3mm Offset Drop-Stop ST 32TChainring Wolf Tooth SRAM Boost 3mm Offset Drop Stop ST 32T The direct mount chainrings for SRAM cranksets replace your existing spider and chainring with one clean looking, lightweight, and stiff piece of machined billet. Compatibility These direct mount chainrings will replace your existing chainring and spider or replace the direct mount ring on SRAM cranksets including the DUB cranks. The ring is attached via 3 bolts on the back side of the spider