SRAM Chain Ring Road RED22/FORCE22/RIVAL22 X-GLIDE R YAW 11 Speed 110 Alum 3mm Blast BlackStarting out with raw 7075-T6 alloy plate we stamp coin and CNC the rings to create a precise shifting whole. Coining shapes tooth profiles into designs CNC alone cant match creating a stronger tooth by strain-hardening the alloy for superior durability.Stainless steel pickup pins give shifting longevity.Chainring-specific finishing technologies and laser graphics add durability and appeal.Blast BlackS2 34T : 50-34S1 36T : 52-36 46-36