The shimano 105 fc 5750 compact bicycle chainset is perfect for higher gearing in hilly areas offering smooth rotation that combines with optimum shifting performance the chainset boasts hollowtech ii technology to remove excess material whilst retaining stiffness designed for use with the cn 5701 directional chain and compatible with the 7900 dura ace and 6700 ultegra systems it features anodised chainrings with five shifting pins lm features shimano 105 fc 5750 compact bicycle ch