Overview Stock for Super Record, Record and Chorus 11 speed compact, mid-compact and standard cranksets 2015+ models that use 112/145mm BCD Stiffer, light alloy rings with hard anodization, corrosion-proof and wear-proof treatments Rings feature 8 pins(53/39) or 4 pins(52/36 and 50/34) for optimal up-shifting performance Speed: 2x11sp BCD: 145mm Color: grey