SRAM Rival 1x D1 DUB Wide Crankset - 68-73mm and BB86-92 - 28.99mm DUB - SRAM Direct Mount - 165mm - Black - 40TElegant and secure direct mount X SYNC chainrings from the company that originated the 1x drivetrain for the ultimate in consistent chain control over the long haul. Direct mount chainrings in 38T through 46T DUB bottom bracket adds durability and simplicity Wide chainline crankset to fit the biggest gravel tires Longer DUB crank spindle accommodates both Road and MTB width frame bottom bracket standards for unmatched cross compatibility across brands