The Truvativ Descendant 7K crankset is engineered for complete control. It features a SRAM X-SYNC 2 chainring and DUB technology, with arms crafted from aluminum for lightweight durability. Features: The Descendant 7K crankset is compatible with the SRAM Eagle drivetrain system The X-SYNC 2 chainring profile features teeth that are precisely controlled to work seamlessly with the SRAM chain's inner and outer links SRAM DUB technology allows for a more uniform approach to bottom bracket fitment, better sealing against contamination and forward and backward compatibility Optimized 7000 series forged aluminum arms Direct mount chainring Designed for SuperBoost + rear spacing, featuring a 56.2mm chainline Specs: Drivetrain Speeds12 Rings32 Defined ColorBlack Chainring BCDDirect Mount SRAM ColorBlack Number of ChainringsChain Retaining Single Pedal Spindle9/16" Crank Intended UseMountain Spindle Interface TypeSRAM DUB BB IncludedNo Crank Length (mm)165mm Chainline/Hub Compatibility157 Super Boost Hubs