Boost your SRAM drivetrain with the Absolute Black SRAM Oval Boost148 Direct Mount Traction Chainring. It features a Boost-specific 52mm chainline , a narrow-wide tooth profile for chain retention, and a range of off-road-appropriate sizing. Absolute Black claims that its oval rings result in smoother rotation and improved traction compared to standard, round chainrings, and this oval chainring is compatible with SRAM GXP and BB30 long spindle cranksets that allow direct-mount chainrings.Take advantage of oval spinning with this direct-mount chainringStrong aluminum body in race-ready size optionsTeeth designed for maximum chain-retention and smooth operation