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: BB Included No Defined Color Black Chainring BCD Direct Mount SRAM Crank Length (mm) 170mm Drivetrain Speeds 12 Crank Intended Use Mountain Number of Chainrings Chain Retaining Single Spindle Interface Type SRAM DUB Pedal Spindle 9/16" Rings 32 Chainline/Hub Compatibility 157 Super Boost Hubs Color Black