TruVativ Descendant Carbon Eagle Boost Crankset 170mm 12 Speed 32t Direct Mount DUB Spindle Interface BLK MFPN=00.4020.694.003 Bench mount measures 4” x Bench mount measures 4” x 6” (10 BB Included No Chainline Hub Compatibility 157 Super Boost Hubs Chainring BCD Direct Mount SRAM Color Lunar Polar Crank Intended Use Mountain Crank Length (mm) 175 Defined Color Gray Drivetrain Speeds 12 Number of Chainrings Chain Retaining Single Pedal Spindle 9 16" Rings 32 Spindle Interface Type SRAM DUB keyword search X01 keyword search XO1 SRAM DUB technology creates a lighter stiffer and stronger crankset Featuring SRAMs DUB technology this design simplifies the relationship of the spindle to the bottom bracket