The Sram Red 1 crankset offers the most demanding Time Trial, Cyclocross and Triathlon racers the right mix of features - aerodynamics, durability and simplicitySingle-ring drivetrain simplifies functionality and reduces weightNon-aero chainrings can be installed with a single tool, making gearing changes a breezeSram X-Sync wide-tooth, narrow-tooth chainring technology provides maximum chain controlLaser-etched chainring finish is more durableDUB bottom bracket adds durability, simplicity and broad compatibilityCan be upgraded to a power meter172.5x46DUBCarbonDirect Mount1x12UPC/EAN/GTIN: 710845869495