Sram Apex 1 DUB Wide Chainset - 12 SpeedSram Apex 1 DUB Wide Chainset A single chainring with a wide range cassette is a wonderfully clean way to tackle so many disciplines, and were the 1x leaders. Sram Apex 1 Wide crankset features aluminium crankarms, a light and stiff DUB spindle, and elegant and secure direct mount X SYNC chainrings for flawless chain management. The wide chainline accommodates wider tyres for any type of adventure. Single ring drivetrain simplifies functionality and