X-Range gearing technology gives you more range and a smoother gear progression, so youre always in the right gearWith tight 13-tooth gaps between chainrings paired to wide-range cassettes, riders get more range while shifting less frequently and staying in the big ring longerWide chainline crankset for bikes with up to 700x45c or 27.5x2.1 tire widthsLonger DUB crank spindle accommodates both Road and MTB width frame bottom bracket standards for unmatched cross-compatibility across brandsDUB bottom bracket adds durability and simplicityCan be upgraded to a power meterRequires Wide front derailleur172.5x43/30DUB WideBLK/IRDirect Mount2x12UPC/EAN/GTIN: 710845887208