SRAM RIVAL D1 172x43/30 DUB WIDE NoBB BLACKPolished aluminum crankarms and the DUB bottom bracket system mean the Rival crankset will keep spinning, no matter what A tight and consistent 13 tooth gap between chainrings delivers accurate and dependable shifting The wider stance of the arms and chainrings provides clearance for extra wide tires, giving you the option to explore new, more challenging routes X Range gearing technology gives you more range and a smoother gear progression, so youre