SRAM RIVAL AXS D1 WIDE POWERMETER 1x 172x46 DUB NoBB BLACKNew power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever Wider stance of the arms and chainrings also provides clearance for extra wide tires, giving you the option to explore new, more challenging routes Invisible technology that adds minimal weight and will help train you get to the finish line faster DUB PWR spindle based unit measures left side power to calculate total watts