The SRAM Force 110mm bold circle 50t chainring has ramps and pins for optimal shifting when paired with a 34t inner chainring. The lifting pins provide improved shifting performance. A chain pin to keep the chain from falling between the crankarm and chainring on overshifts. The quality SRAM chainring is compatible with 9 or 10 speed systems. It fits a 5-bolt 110mm bolt circle and has a grey or black anodized finish.