Race Face Turbine 2x 9-11sp Chainrings RRT11104X38BLK

- CNC 7075 aluminum with asymmetrical tooth profiling and more upshift and downshift zones for consistent, instantaneous, quiet shifting even under load\n- 3x10 speed optimized for Race Face cranks, 2x10 rings optimized for both Race Face and SRAM cranks\n- Note: the wings on the 22t ring will contact the BB when used with a BSA30 bottom bracket