Engineered to go the distance. Polished aluminum crank arms and the DUB bottom bracket system mean the Rival crankset will keep spinning, no matter what. Elegant and secure direct mount X-SYNC chainrings from the company that pioneered the 1x drivetrain for the ultimate long-term consistent chain management. * Direct mount chainrings in 38t to 46t * DUB bottom bracket adds durability and simplicity * Wide chainline crankset for the largest gravel tires * Longer DUB crank spindle accommodates both Road and MTB width frames for bottom bracket standards for unmatched cross-compatibility across brands * Compatible with 135, 142 and Boost rear spacing