`- Shims press fit directly into BB30 or PF30 bottom brackets \n- WZ-9700 and 9800 for 24mm non-tapered spindle cranks, such as Shimano Hollowtech-II\n- WZ-9702 and 9802 for 24 to 22mm tapered GXP spindle cranks, such as SRAM and Truvativ\n- Easy to install and machined for exact fit based on industry standard BB30 or Pressfit 30 bottom bracket shells